Mastercard4863Fraud

Cardholder Does Not Recognize—Potential Fraud

The cardholder does not recognize the charge on their statement and suspects fraud. Unlike 4837, the cardholder has not confirmed it is fraud: often they just do not know the merchant name.

Why it happens

  • The statement descriptor does not match the brand the customer knows.
  • The customer forgot about a renewal or a trial that turned into a paid plan.
  • A family member made the purchase.

What to send to fight it

  1. Details that help the cardholder recognize the purchase: merchant name, website, product and date.
  2. Logs linking the cardholder to the purchase: account login, IP address, device.
  3. Proof the cardholder used the product or received the goods.
  4. Proof a refund or reversal was already processed.

How to prevent it

  • Use a statement descriptor that matches your brand and add a support URL or phone number.
  • Send receipts and renewal reminders by email.

Summaries written by NoChurn from the networks’ public rules and processor documentation. Networks update their rules and deadlines depend on your processor: check its documentation before you respond.

Other Mastercard codes

← All reason codes
Sources (1)
  1. Mastercard Chargeback Guide, Merchant Edition (19 May 2026) · checked 2026-11-09
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