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Depending on dispute reason and card network, different fields and documentation must be present when you call the file endpoint for a case. Missing values produce a 400 response with parameter_missing or documentation_missing errors. This reference lists, per network, the requirements for each dispute type. Evidence beyond these requirements is also recommended, see Dispute Types.

Mastercard

Required fields

ReasonRequired fields
fraudissuer_evidence.card.is_active (must be false); at least one of issuer_evidence.fraud.was_reported or issuer_evidence.fraud.submit_report
incorrect_amountissuer_evidence.amount_correction.amount, issuer_evidence.amount_correction.currency

Required documentation

ReasonRequired file category
incorrect_amounttransaction_receipt

Visa

Required fields

ReasonRequired fields
fraudissuer_evidence.card.is_active (must be false); at least one of issuer_evidence.fraud.was_reported or issuer_evidence.fraud.submit_report
product_not_receivedissuer_evidence.delivery.expected_date, issuer_evidence.merchant_contact.date
subscription_canceledissuer_evidence.cancellation.date, issuer_evidence.merchant_contact.date
product_not_as_describedissuer_evidence.delivery.date, issuer_evidence.merchant_contact.date
credit_not_processedissuer_evidence.refund.promise_date
incorrect_amountissuer_evidence.amount_correction.amount, issuer_evidence.amount_correction.currency
product_counterfeitissuer_evidence.delivery.date
canceled_or_returnedissuer_evidence.delivery.date or issuer_evidence.delivery.expected_date, issuer_evidence.merchant_contact.date

Required documentation

ReasonRequired file category
credit_not_processedrefund_promise (credit transaction receipt, voided transaction receipt, or other proof of credit due)
incorrect_amounttransaction_receipt
product_counterfeitcounterfeit_evidence (e.g. photo of counterfeit item, third-party verification)

American Express

Required fields

ReasonRequired fields
fraudissuer_evidence.card.is_active (must be false); at least one of issuer_evidence.fraud.was_reported or issuer_evidence.fraud.submit_report
incorrect_amountissuer_evidence.amount_correction.amount, issuer_evidence.amount_correction.currency

Required documentation

ReasonRequired file category
incorrect_amounttransaction_receipt
For the full list of recommended evidence per dispute type, see the Dispute Types documentation. For filing windows and earliest-filing dates, see Filing Timelines.