Mastercard4999Customer dispute

Domestic Chargeback Dispute (Europe Region Only)

Used only in Europe, for disputes between an issuer and an acquirer in the same country under local rules. The reason behind it depends on the domestic rules of that country.

Why it happens

  • A domestic transaction was disputed under rules specific to that country.

What to send to fight it

  1. The documents asked for by the domestic rules, as explained by your acquirer.
  2. Proof of delivery or usage, and the terms the cardholder accepted.
  3. Proof a refund or reversal was already processed.

How to prevent it

  • Ask your acquirer which domestic rules apply to your transactions.
  • Keep receipts, terms and delivery records for every sale.

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
PROMPT

Read https://www.nochurn.sh/llms.txt,
then follow https://www.nochurn.sh/docs/quickstart/
to add NoChurn to this app. Use a test key
(nc_test_…) until I say we go live.

Stop leaking revenue.

  • Free until $300 MRR
  • No card needed
  • Live in 10 minutes
  • Never a cut of what we recover