Mastercard 4834: Duplicate Processing / Point-of-Interaction Error
Processing ErrorsDefense: MixedMATCH relevance: Low
Issuer filing window
120 days from transaction date
Merchant response window
45 days
Same transaction processed multiple times, or other point-of-interaction errors at the merchant terminal.
Compelling evidence for 4834
- Distinct transaction records (different timestamps, amounts, terminals)
- Refund processed for actual duplicates
Mastercard 4834 questions.
How long do I have to respond to a Mastercard 4834 chargeback?
45 days from notification. Missing the response window normally forfeits the dispute, whatever the merits of your case.
How long can the issuer wait before filing 4834?
The issuer filing window for 4834 is 120 days from transaction date.
How hard is 4834 to defend?
Defense difficulty for this code is rated Mixed in our catalogue. The evidence list above is what the schemes accept for this code.
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