Chargeback already processed: The customer has initiated and successfully processed a chargeback through their bank, making a refund through the standard process unavailable.
Duplicate refund attempt: The merchant or customer is attempting to refund a transaction that has already been reversed via a chargeback.
Payment processor restrictions: The processor has blocked further refund actions after the chargeback has been completed.
Inform the customer that the transaction has already been reversed via a chargeback, and no further refund is possible.
Advise the customer to contact their bank or card issuer for further details regarding the chargeback.
Review your internal records to ensure no additional refund attempts are made on the same transaction.
Provide the customer with transaction and chargeback details if they need documentation for their inquiry with the bank.
Implement clear refund policies and proactive communication to minimize the likelihood of disputes escalating to chargebacks.