Why it happens
- The payment was processed without an authorization or after a decline.
- The transaction was settled after the authorization had expired.
- The settled amount was higher than the authorized amount.
Mastercard4808
The merchant did not get a valid authorization for the transaction, completed it after a decline, or presented it after the authorization had expired. Mastercard groups all authorization problems under this one code.
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.
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.