13. American Express Chargeback Codes (2023) American Express functions as a card network and an issuing bank. UA06 Fraud – Chip and PIN Transaction. The situation grows more tenuous when you realize most of those chargebacks were likely the result of friendly fraud. A “No Authorization” code chargeback can also be the. Visa chargeback reason code 72 falls under the “Authorization” category. All ACH return reason codes consist of the letter “R” followed by two. F02. A reason code or a chargeback reason code is a string of symbols (numbers and letters). In most cases, you will have 20-45 days in which to respond to a chargeback. . The agency must provide this documentation to Vantiv (via mail, fax, online/scanning) within 30 calendar days after the report date on the Visa/MasterCard. So don’t spend another second worrying about chargebacks. A chargeback reason code is a two- or four-digit alphanumeric code issuing banks assign to disputes. In general, the unauthorized use of a parent’s credit card by a child is not considered a legitimate reason for filing a chargeback, since it is not criminal fraud, and the customer received the purchased goods or services. Pursuant to the Fair Credit Billing Act of 1974, cardholders have the right to dispute unauthorized or erroneous charges, and issuing banks must reverse a disputed transaction if the cardholder’s claim is valid. What are the odds a merchant will “win” the chargeback dispute? The true odds depend on the strength of the compelling evidence and the chargeback reason code itself. Code 13. Typically, cardholders file a chargeback if they were not informed of dynamic currency conversion fees or were not given the option to complete the sale in their local currency. Whether the CID — the four-digit security code on the front of the Card — matches the issuer’s records. For example, a debit may have been processed instead of a credit, or a credit processed instead. Visa chargeback reason codes. Despite being the smallest of the four major credit card companies, the list of Discover chargeback reason codes is extensive. Chargeback. Chargeback reason codes are what tell a merchant why a customer is disputing a charge. Visa Chargeback Reason Codes The Visa chargeback reason codes system underwent a major overhaul in April 2018 as part of their new Visa Claims Resolution (VCR) initiative. A transaction modifier (or modifier) represents specific circumstances associated with a card sale that change what compelling evidence is required to overturn the chargeback. The good news is that most of these invalid claims are disputable by the merchant. A fraud filter is any technology designed to analyze transaction data and flag commonly-recognized signs of fraud. In that way, winning one dispute may help prevent the next chargeback to come after it. For example, Mastercard has a code which indicates a ‘consumer dispute. 3 No Authorization. About Visa chargeback reason codes. Laundering: The merchant carried out transactions without a legitimate cardholder’s involvement. This reason code indicates that the merchant processed a transaction without first obtaining a correct and valid authorization approval. Authorization related Chargeback: 4834:. prenotification of chargeback, depending on the chargeback reason code, to the agency requesting additional documentation to properly dispute and remedy the chargeback. chargeback: The buyer filed a chargeback with the credit card issuer. A customer payment dispute, more commonly called a “chargeback,” happens when a cardholder disputes (challenges) a payment card transaction and asks the card-issuing bank to reverse it. 1: Use the corresponding dates from the invoice. Issuers must not initiate a chargeback for magnetic-stripe (POS Entry Mode value of 90 or 02) transactions on non-chip enabled cards. The reason codes are grouped into several broad. Having a Lax Attitude Toward Industry Rules & Regulations. The reason code. There are five main categories of Visa chargeback reason codes: Fraudulent Transactions, Authorization Issues, Processing Errors, Consumer Disputes, and Other Chargeback Categories. Availability Date: October 24th, 2021. Category. Chargeback amount is equal to or less than the exceeded limited /authorised amount. This may be done by either the merchant or the issuing bank. The customer is claiming that this purchase was not authorized. 2 is the result of receiving a declined authorization but going ahead with the transaction anyway. To win a chargeback dispute as a merchant, you must have evidence that is compelling enough to persuade the cardholder’s bank to reevaluate the case. Chargeback prevention strategies vary based on the reason for the. 4853 – Cardholder Dispute – Credit Not Processed. American Express often sends inquiries to merchants, through their acquiring banks, to gather more information about a. If one member believed the other violated a Visa rule when handling a chargeback, they filed a pre-compliance chargeback for compensation. Once you understand the reason code associated with a chargeback, you can understand the root cause of the dispute and submit a response that includes the. Chargeback reason codes are codes used to categorize the reason for the dispute. WEX has repurposed chargeback reason code 10 to indicate EMV chargebacks. Code 81. Chargeback time frames - A specific period during which a chargeback can be raised. The shorthand description is “Declined Authorization. 1. Step 1: Identify the Source. Hence, she disputes the merchant under the Reason Code 71: Declined Authorization. 4850: Installment Billing Dispute: List of reason codes supported by Pega Smart Dispute for Issuers in Maestro are as following: Reason codes in Maestro. May 2011: 5. We’ve all been there as an eCommerce owner: you excitedly ship out a $1,500 order to a customer, and then a few weeks later you’re notified that the customer has opened a chargeback dispute. 9808 info@chargebacks911. Enhanced Customer Service. The details below are intended to help businesses feel more confident in understanding common chargeback codes and to surface possible actions you can take to respond to a chargeback dispute. Mastercard Chargeback Reason Code 71: Disputed Amount. UA10 Request Transaction Receipt (swiped card transactions) UA11 Cardholder claims fraud (swiped transaction, no signature) Merchants who believe they have received an invalid chargeback under reason code 11. The ECI value tells you what to do next in a 3DS transaction — proceed, reject the purchase, or try again. Code. Review your credit card processor’s policies to understand its chargeback dispute process. Chargeback reason codes apply to disputes, between a cardholder (customer) and a merchant, when the dispute has escalated to a chargeback. 71: Declined Authorization: 72: No Authorization Obtained: 73: Expired Card: 74: Late Presentment: 75: Cardholder Does Not Recognize the Transaction: 76: Incorrect Transaction Code: 77:. Visa chargeback reason code 11. Reason Code 71 designates chargebacks resulting when the card issuer receives a transaction for which authorization has been declined. Europe Region Operations Bulletin No. The first thing you should do when you receive a chargeback notification is to check the reason code that the card issuer assigns to the dispute. However, it is important to note that this reason code is based on the reason given by the customer to their bank. Mastercard: n/a This chargeback is caused by Authorization. Merchants may face chargeback fees, and excessive chargebacks may result in fines or termination of merchant services. For example, the dispute reason “Cardholder Does Not Recognize” is denoted under the Discover reason codes system as “AA. Key-in your chargeback reason code and get a detailed explanation of what it means, how to fight the chargeback, and how to prevent disputes in the future. Visa chargeback reason code 71 falls under the “Authorization” category. Complaint reason_code values include: not_as_described: The buyer claims that the goods or services received differ from the merchant's description of the goods or services. Field name: reasonCode. Different card networks have different reason code systems. UA05 Fraud – Chip Counterfeit Transaction. Reason. MASTERCARD Reason Code Description 01 Requested Transaction Data Not Received 02 RequestedRequired information illegible or missing. 2? Visa chargeback reason code 11. The reason_code will be one of the following values: chargeback_reimbursement: The gross shows positive if the chargeback was resolved in the seller's favor, and the seller gets a refund. In the case of friendly fraud, that reason could be completely invalid and. It should ultimately help prevent fraud and unwarranted chargebacks, specifically applying to disputes marked with a Visa reason code 10. 2: 10: Fraud:6. If you did not receive the email, open Mave, Wave’s automated chatbot, and. ” This code indicates that the merchant sent an authorization approval request for a transaction, received a “Decline” or “Pick Up Card”. Each chargeback is disputed by a specific reason code. This does not include an AuthorizationVisa’s Reason Code 71 can be confused with Reason Code 83, as in both a chargeback results from a failure to obtain an authorization approval. This chargeback occurs when merchants do not adequately provide currency information. Chargeback Reason Code 30 - Services Not Provided or Merchandise Not Received The chargeback time limit is calculated based on one of the following: 120 calendar days after the transaction processing date 120 calendar days after the last date the cardholder expected to receive the goods or services (not to exceed 540 days of the transaction. Every chargeback comes with a reason code. R13 No Reply. November 5, 2023. UA06 Fraud – Chip and PIN Transaction. Code 4871 chargebacks usually occur when a fraudster with a stolen credit card targets a merchant whose POS terminals don't support PIN entry or convinces the merchant to bypass the PIN requirement. Once you know why a chargeback happened, you can start building a case to address the claims that were made. • Section 4: Chargeback Reason Codes—Contains detailed information on the reason codes for the most common types of chargebacks that merchants receive. Accessed October 31, 2022. S. Explanation. Common Point of Purchase: Data stolen from a merchant’s system is used to make fraudulent transactions. They also can’t prevent the lost sales revenue and merchandise resulting from a consumer dispute. Fortunately, by submitting a response to chargebacks coded as fraud, you can win the chargeback and regain the transaction value. 7: Defective goods and services: C32: RM: 13. The chargeback reason code 53 is a very common reason code. See Reason Codes for more. These chargebacks occur to resolve chargeback-related disputes between network members. 3. On xx/xx/xxxx, we received a chargeback under the reason code 11. Not remembering the original purchase. The shorthand description is “Declined Authorization. UA10 Request Transaction Receipt (swiped card transactions) UA11 Cardholder claims fraud (swiped transaction, no signature)What is Visa chargeback reason code 11. After the issuing bank’s unsuccessful attempt to identify the transaction for the cardholder, the chargeback process begins. ”. This code applies when valid authorization for a transaction was required but not obtained, and the merchant processed the transaction anyway. Card Recovery Bulletin Authorization Visa Code: 11. The chargeback transfers funds from the acquirer to the issuer. 1 and Note on page 14 Chapters 1 and 2 Chapter 1 1. This indicates that the merchant didn't respond to an inquiry properly. You must designate the write-off reason code for the system to use when you activate the automatic write-off feature. The shorthand description is “Incorrect Transaction Code. When alerted about a potential chargeback, businesses can reach out to the customer promptly to understand and address their concerns. If one member believed the other violated a Visa rule when handling a chargeback, they filed a pre-compliance chargeback for compensation. Card issuers and card networks deem certain chargeback codes to be nearly indisputable by merchants, and as a result, a merchant can be charged a fee of up to $500 by card networks for submitting a dispute of such chargebacks. up under any number of different chargeback . It depends on the chargeback reason code associated with the dispute. In 2021, the main update was the streamlining of their list of chargeback reason codes—consolidating them into a few numeric codes, each holding a text description distinguishing it from the others. 2 may be able to represent the transaction and reverse the chargeback with the right compelling evidence. 2 Recurring transaction cancelled . Description of Change Where to Look Updated Chip Liability Shift table elements Second Presentment Condition bullet #2, Supporting Documents and DE 72. Reason Code. This list was generated 5/4/2022. Now, compliance cases go through Visa Resolve Online (VROL). Under certain circumstances, Mastercard may allow consumers to reverse a payment card transaction by filing a chargeback. . Updated the following columns - card type, response due date. The details below are intended to help businesses feel more confident in understanding common chargeback codes and to surface possible actions you can take to respond to a chargeback dispute. Visa chargeback reason code 71 falls under the “Authorization” category. 4630 . “It’s a lot tougher with Mastercard because they only use four main codes. The transaction amount is re-charged to the cardholder’s account, and the funds go back into your bank account. com . Protect stored cardholder data. So the company has more incentive to side with customer during cardholder. See our Automated Clearing House (ACH) support article if you are looking for ACH Return Codes. Declined Authorization Authorization Visa Code: 11. Supporting Documents You could potentially reverse a Chargeback by providing the. Prevention strategy: Implement EMV chip card technology to reduce the risk of fraudulent card-present transactions. They can also be caused by a merchant failing to process a cancellation promptly. MASTERCARD Reason Code Description 01 Requested Transaction Data Not Received 02 Requested\Required information illegible or missing 07 Warning Bulletin File 08 Requested\Required authorization not obtained 12 Account number not on file 31 Transaction amount differs 34 Duplicate Processing 71: Declined Authorization. The shorthand description is “Late Presentment. In fact, 91. A chargeback happens when a customer asks their card-issuing bank to reverse a transaction. S. 2 falls under the “Authorization” category. Added the following fields - Store ID, Credit Card Chargeback Reason Code. 1. Chargeback Reason Codes Retrieval Reason Codes 78 Int'l only Service Violation Code Discover 4541 AP 4586 AW 4755 RG 4553 RM 8002 RN2 Altered Amount Non-Receipt of Goods or Services0Cardholder. For example, if the chargeback reason is. 6. Each code corresponds to an issue or problem. Reason Code. Visa requires processors and banks use to this system for multiple tasks, including challenging initial chargeback results. Chargeback management describes all of the ways in which merchants can deal with fraud and disputes that result in payment reversals. To facilitate the RuPay members in raising and resolving a dispute on a transaction which had previously been cleared by RuPay, RuPay has defined the rules and guidelines for the dispute management process in this manual. With the chargeback code in hand, the merchant can now review the transaction. Say Goodbye to. Not recognizing your billing descriptor on a statement. You’ll see that all chargebacks ultimately stem from one of three causes: merchant error, criminal fraud, or friendly fraud. 2 - Declined Authorization. © Chargeback. 7 Message Reason. The tickets were held at the box office, and no signature, swipe or imprint of the card was obtained when the tickets were released. Depending on the chargeback, the required evidence might consist of transaction receipts, particular authorization response codes, proof of delivery, correspondence with the customer, or any number of other specific documents. Fraudulent Activity. First, after a cardholder contacts the bank to inquire about a transaction, the bank uses VROL to pull detailed transaction information. This list was generated 5/4/2022. The number of in. MasterCard does not have an equivalent reason code. If you do perform a key-entered transaction, make a manual imprint of the card. The portion of fraud taking place in mobile channels jumped in 2021, more than tripling from 8% of US retail fraud in 2020 to 27% in 2021. A reason code is an alphanumeric code that explains the reason behind the dispute. High Level Visa Chargeback Dispute Flow. Every time a merchant processes a transaction, they are supposed to send an. Reason Code 12. Terms and conditions. These fraud tools are designed to warn users of potentially fraudulent transactions, letting users stop and reject untrustworthy transactions. 7: Defective goods and services: C32: RM: 13. Transaction was approved by the Issuer knowing that the authentication data failed verification and was not reliable. There are two parts to this. chargeback: The buyer filed a chargeback with the credit card issuer. ©UA01 Fraud – Card Present Transaction. The cardholder claims either that the merchandise was never received, or the services purchased were not provided. Despite all the rules and guidelines, the outcomes of the chargeback process can be, at times, subjective, and can vary based on the scenario, merchant payment. It gets worse. Try Shopify free for 3 days, no credit card required. For each reason code, a definition isThe Online Chargeback Management system now reflects the new reason codes and case. A chargeback happens when a customer requests for a transaction to be reversed. According to research, actual fraud or online shoplifters accounts for only 29-30% of total fraud losses for e-commerce which is a criminal fraud. 4808: This code can refer to: Account Number Not on File. 02/10/16 Added Debit Chargeback Reason Codes. • Section 4: Chargeback Reason Codes—Contains detailed information on the reason codes for the most common types of chargebacks that merchants receive. 11, 16. About American Express chargeback reason codes. 10/21/14 Updated Chargeback Time Frames: Added Reason Code 05; Addendum Reason Code PM; Changed TF time frame from 120 days to 540 days. 1 Chargebacks A chargeback is a rules-based mechanism, with time-sensitive workflows, that enables the issuer and the acquirer to determine the financial liability of a disputed transaction. It’s typical to see fraud chargebacks roll in 2-3 months after the initial charges took place. Technical. You double and triple check your customer service records to see if the customer wrote in about the shipment (they haven’t), you check the tracking. processed the transaction correctly. Use fallback options—like manually entering transaction data—as a last resort. (4. This is up from #5 in 2019. The charge you submitted did not receive a valid authorization approval code for the amount of the charge. Both EFM and ECM measure compliance at the MID level. Message. . 1. Each chargeback has a chargeback reason code assigned to it, which is a two-digit number that corresponds to the reason the customer is disputing the charge. There are plenty of reasons as to why this would happen, hence the many. Please refer to chapter 5 for more information. The first thing to understand is that not all chargebacks are the same. 195 Acquirer Use of Message Reason Code 7627-No MAC Provided. Reference these when rebutting cardholder disputes at your small business. ” This code indicates that the merchant sent an authorization approval request for a transaction, received a “Decline” or “Pick Up Card” response, and submitted the transaction anyway. September 2011: 5. The chargeback process is lengthy, time-consuming, and will always end up costing you more money than the original transaction was worth. If the merchant has a signature showing that the order was delivered, or evidence that the. Additionally, one clearing transaction. 3 applies when a cardholder claims a charge—made in a card-present environment—was. Below is a list of Mastercard chargeback codes used in eCommerce. A Charge is Disputed * We’ll work directly with the Card Member and try to resolve the case before reaching out to you. Look below the surface. Acquirer Use of Message Reason Code 7623. 2 Declined Authorization. If the merchant continues to bill the customer, the customer may file a chargeback with American Express under Reason Code 71. Download our 100+ page comprehensive guide to reason codes, modifiers, time limits, and compelling evidence. 3 No Authorization. Receive the Chargeback. Spot these types of chargebacks using. Discover chargeback reason code 7030. 2 falls under the “Processing Errors” category. The difference is that, while a Code 83 designates a chargeback where an authorization request was not submitted, a Code 71 results from processing a transaction for which authorization was. 4512:Chargebacks911 offers the most comprehensive chargeback management system available, backed by the industry's only performance-based ROI guarantee. The terms may be different, but the process remains fairly unchanged. Chargeback Reason Codes by Industry. Code 4807: Fraudulent Card-Present Transaction. Dispute Condition Description Dispute Condition Code Category Code Category Code Description; EMV Liability Shift: 10. Top-3 Visa Dispute Reason Codes. Mastercard: n/a This chargeback is caused by Authorization. These symbols stand for reasons why a financial institution may file a credit card chargeback from their client’s name. When a chargeback request is filed a chargeback reason. Mastercard issuers use merchant advice codes to respond to authorization requests, and as a communication tool with merchants regarding a cardholder's account. 13. UA05 Fraud – Chip Counterfeit Transaction. 83 (1) 10. You may know that every dispute you receive is attached to a chargeback reason code. Also, just like American Express, Discover functions as both a card network and an. Chargeback reason codes have changed. She later changes her mind and cancels her order for which she didn’t receive the code. Chargeback fraud, in particular, accounts for 30 percent of total. For best results, your chargeback win rate should be as close to 100% as possible. Eligible Chargeback Reason Codes . This chargeback reason code means that the cardholder was not able to recognize the charge on their bank statement and believes that the transaction was fraudulent. Chargeback. While the updates have been published, they do not go into effect until Oct. This ranges anywhere from roughly 60 to 90 days after purchase. It is very similar to: Mastercard's 4853- Defective/Not as Described Reason Code. Chargeback Reason Codes Page 1 of 5 Card Type Reason Code Reason Text Chargeback Category Preventable Reversible MASTERCARD 4802 Requested/Required Item Illegible or Missing Request for Information YES YES MASTERCARD 4803 Documentation received was invalid/incomplete Request for Information YES YES5 Categories of Visa Chargeback Reason Codes. A chargeback reason code may display a chargeback related to fraud, processing errors, consumer disputes, or a variety of other reasons. The Takeaway It can be difficult and frustrating to put a stop to a transaction, just because the POS terminal cannot read the card or your authorization. 71 Declined authorization; 72 No authorization obtained; 73 Expired card; 74 Late presentment;Chargeback Representment. The list of chargeback reason codes in this article is organized by card brand and type of dispute. Valid Values/Format: 22 - First Chargeback Handling Fee. If one member believed the other violated a Visa rule when handling a chargeback, they filed a pre-compliance chargeback for compensation. You cannot effectively fight chargebacks until you identify which of these three things is actually responsible. io Search the Chargeback Reason Code Database. If you believe you have received an ACH return in error, you can contact your bank. The merchant did not receive any returned merchandise. The assigned chargeback reason code outlines why a customer submitted the dispute. 6 Duplicate Processing/Paid by Other Means. Chargeback reason codes can change with new information. M10 Vehicle Rental – Capital Damages. 1. There are multiple situations in which this can occur. Chargeback reason code. The chargeback reason code. Carefully analyze the reason provided by the cardholder for the chargeback. That suggests that in the times when merchants. 04/04/16 Added American Express Chargeback and Retrieval Reason Codes. This code is used when a cardholder claims that a fraudulent transaction occurred in a face-to-face environment, such as a retail store. Each response needs to be unique. 1 is the successor to the older reason code 30, which was replaced as part of the Visa Claims Resolution initiative. Auto Write Off. 3 is an updated version of legacy Visa reason code 72, which was phased out under the Visa Claims Resolution initiative. 13. 5 Removed unused Visa (60) and Discover (4580) Chargeback Codes Added Section 1. '60 days from the Retrieval Request Date Health Care Request 70 Chip Liability Shift 71 Chip/PIN Liability. Attachment A: Copy of the customer's transaction on xx/xx/xxxx using a credit card ending in XXXX. A false decline on a credit card or debit transaction occurs when a legitimate card purchase is rejected by mistake. Examples, processing a transaction even after the subscription is cancelled, defective items delivered, non-delivery of sold goods and so on. Learn more about Visa. Chargeback companies can assist merchants in navigating these processes, and work with them to develop a comprehensive chargeback prevention strategy. UA02 Fraud – Card Not Present Transaction. It comes into play when customers assert non-receipt of goods or services. There are no format changes to the sales file specification; there are additional values added to the sales file to designate chip card transactions. 31. Updated: Valid values updated. For example, suppose a cardholder filed a case about an order processing issue, and you disputed the chargeback. 5%. If more information is needed, you’ll either receive an Inquiry or a Chargeback. Know these five rules to avoid payroll blunders triggering fines, penalties and IRS audits. This code applies when authorization for a transaction was requested and denied, but the merchant processed the transaction anyway. Reasons a customer may initiate a chargeback include: Ordering a product and not receiving it. What is Visa chargeback reason code 12. ”. 71 (1) 11. 3 is an updated version of legacy reason code 53, which was phased out under the Visa Claims Resolution initiative. 71 (3) Removed. Merchant must provide proof of authorization. A chargeback happens when a customer requests for a transaction to be reversed. Fraud. EMV Liability Shift Non-Counterfeit Fraud. chargeback_settlement: The gross shows negative if the chargeback was resolved in the buyer's favor, and the funds return to the buyer. The chargeback process is initiated outside of Venmo, between the card issuer and their cardholder. 2 is an updated version of legacy Visa reason code 71, which was phased out under the Visa Claims Resolution initiative. 4. Chargeback reason codes. A chargeback is a reversal of funds following a debit or credit card purchase, set in motion when the customer files a dispute over the charge with their bank or credit card provider. All other reason codes are up to 120 days from the transaction date. [MasterCard Reason Codes 4853, 4855, 4859; Visa. The transaction amount and authorization number (ARN. While there are many chargeback reason codes, all chargebacks fall into one of three categories: The chargeback period, or the time limit for filing a chargeback, depends on the card scheme and the chargeback reason code. 2 EMV Liability Shift. Updated these Visa Chargeback Codes: 30, 62, 85. 12, 1December 2015, Authorization-relatedChargeback Sections Combined. instead of chargeback reason codes Chapter 3—Dual Message System Chargebacks, Overview, Chargeback Message Reason Codes, First Chargeback: MTI 1442 Removed all references to chargeback message reason code 4802—Requested/Required Information Illegible or Missing as announced in Global Security Bulletin No. 3 falls under the “Consumer Disputes” category. October 25, 2023. For the sake of simplicity and standardization, card networks like Visa created a breakdown of the acceptable causes for a customer to dispute a charge by filing a chargeback. These codes explain the reason why the chargeback was filed, and the reason the chargeback was approved. In both instances if the Merchant wishes to withdraw from an arbitration case, Visa will charge the amount of 500. Visa’s 22 chargeback reason codes will be merged into client disputes – fraud, authorization, processing errors, and four guidelines. Poor order shipping: Not shipping goods or delivering services as promised, shipping to the wrong address, or not making the goods available. Transaction is not eligible for Reason Code 75 (cardholder does not recognize transaction) or 83 (fraud transaction - card absent environment) 2. According to research, actual fraud or online shoplifters accounts for only 29-30% of total fraud losses for e-commerce which is a criminal fraud. Each major credit card company has its own. If the cardholder’s bank accepts the dispute, they will reverse the transaction, taking the funds back from the merchant and. 3 is the less common version for card-present transactions. Chargeback reason American Express reason code Discover reason code Mastercard reason code Visa reason code; Cancelled subscription: C28: NF: 4841: 13. For each claim, you must craft your representment to suit the reason code under which the bank filed the chargeback. It is subject to change and may not include every currently known dispute reason code. Assemble Your Evidence. 4 Incorrect Account Number. 4 applies to eCommerce, whereas code 10. The reason_code will be one of the following values: chargeback_reimbursement: The gross shows positive if the chargeback was resolved in the seller's favor, and the seller gets a refund. But research by Javelin found that merchants dispute 43% of all chargebacks and succeed at 60% of those disputes. Reason Codes A chargeback reason code is a distinctive two-to-four-character combination of letters and numbers issued by the involved bank to identify why a dispute was initiated.