Description of Reason Code 4840
Fraudulent Processing of Transactions
Insights from Rules and Regulations
The cardholder or authorized user was still in possession and control of all valid cards at the time of the transaction, and the cardholder admits to at least one legitimate face-to-face transaction, on the same card at a given merchant location, but denies making one or more additional face-to-face transactions at that same merchant location.
How to Win Reason Code 4840
Respond to the dispute by providing documentation substantiating the cardholder participated in the original transaction and documentation to establish the cardholder is responsible for the additional transaction(s). Proof of card presence and signature for the original transaction, as well as documentation to support that the addendum transaction is the cardholder’s responsibility is important.
Transaction Modifiers applicable to Reason Code 4840