Reason Code DPDuplicate Processing

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Card Issuer


Reason Code



Service Dispute


The merchant processed one transaction two or more times.


  • The merchant erroneously charged an identical transaction twice.
  • The merchant submitted the transaction batch twice.
  • The merchant processed the transaction, but the customer still paid for the service or products by another method.
  • There are multiple receipts for one transaction.


Cardholders and issuers have 120 days to file a dispute related to the claim against the merchant.

Merchants have 30 days to respond to the claim in dispute.

Steps to Prevention

  • Review all transaction receipts before you make a deposit.
  • Send in one batch at a time.
  • Credit a duplicate transaction.
  • Train your staff on the correct process of dealing with credit transactions and duplicates.
  • If the customer opts to pay with a different mode of payment after initiating a card payment, ensure you void the transaction.


The card issuer gets 30 extra days to file a chargeback if they submitted a retrieval request which was completed after the 120 days.

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