Reference pagesReason codes
Legacy
Discover NC: Not Classified
A Discover dispute reason code, what it asks you to prove, and what Do The Proof puts in the response.
This code is retired
Not in Discover's current numbering. The acquirer guides this hub reads (Chase, October 2024; Moneris, 2019) do not list it.
What this code means
Not in Discover's current numbering
Two other published lists still print it.
What the network says wins it
AUTH
- Authorization and processing records
How the app handles it
Arrives in the app as: nothing. The sources do not record a label for this code, so a dispute carrying it arrives without one.
How long you have to respond
- Cardholder dispute window
- 120 days, or 540 days for non-receipt and quality, or 730 days for good faith
Where this comes from
Other Discover legacy codes
Do The Proof drafts dispute responses for Shopify stores.
You pay when a dispute is won. Not before.