Incorrect Transaction Amount or Account Number or Invalid Adjustment - RC -80

The buyer’s bank found incorrect transaction amount or account number mismatched with the posted information with them and the information on the order receipt. The transaction was processed with the incorrect account number, incorrect transaction amount and/or had an error while calculating transaction amount without cardholder’s permission or the merchant altered amount after the order was processed without notifying to the cardholder.

Most Common Causes

If the merchant:

• Entered wrong account number.
• Entered wrong transaction amount for that particular transaction.
• Altered the amount after getting the signature from the customer.
• Made a mistake while calculating the amount.
• Exchanged the amount after completing the transaction without taking permission from the cardholder.
• Increased the transaction amount without getting any consent from the cardholder.

Evidence Required

• Provide documents to the acquirer bank describing the product, the transaction amount and the account number on the order receipt are same as acquired information.
• Accept the chargeback, if account number or transaction amount is different from the order receipt and the information posted.
• If disputed chargeback for the incorrect transaction amount, the merchant should process a new transaction within 30 days from the original date, however, if chargeback already has performed its function never issue a refund for that particular transaction.
• No action needed if the customer dispute chargeback for the incorrect amount.

Prevention

• If the business accepts cards, swipe it or manually enter the account number, however, make sure that the account information is used from the face of the card on the order receipt.
• Ensure to use a standard printer to print the order receipt.
• If the cardholder has signed an order receipt, the merchant should not exchange or alter it.
• If chargeback was imposed on an incorrect amount, the merchant must try to communicate with cardholder to adjust the order receipt to show up the correct amount.
• Compare the key-entered to make sure that the transaction information typed is accurate.

Common Example

Linda went grocery shopping and swiped her card to make the purchase. She didn’t realize and hit the option “yes” to the question if the amount was correct. Later she tallies her bill and cross-checks the amount to find out that ten more dollars have been added to the bill. She, therefore, goes ahead and disputes the charge with the help of her bank under the Reason Code 80: Incorrect Transaction Amount or Account Number or Invalid Adjustment.