American Express Reason Code P22

What is

The card number processed doesn't match the number the cardmember actually used.

A data-entry or system error resulted in the wrong card number being charged.

Usually a processing/integration issue rather than a customer dispute in the typical sense.

Checkout record of the card number actually captured at time of purchase.

Submit your checkout record proving the correct card number was captured.

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Manually re-keying card numbers instead of using tokenized processing.

Use tokenized card processing rather than manual card-number entry.