Reference pagesReason codes

Legacy

Mastercard 4840: Legacy code

A Mastercard dispute reason code, what it asks you to prove, and what Do The Proof puts in the response.

This code is retired

Absent from the Mastercard Chargeback Guide of 13 May 2025 and consolidated into 4853, 4834 and 4808. The inventory records no retirement date, only the edition it is missing from, and it abbreviates the legacy names inside one grouped cell. The guide of 13 May 2025 does not mention this code anywhere, and the inventory does not name it, so this hub does not name it.

What this code means

Absent from the May 2025 guide; consolidated into 4853/4834/4808. Stripe still maps 4841→subscription_canceled, 4855→product_not_received, 4860→credit_not_processed, 4863→unrecognized, 4831/4842/4846→general (4842/4846 "DEPRECATED")

The sources differ. Chargeflow still lists this code as current and the May 2025 guide does not; the inventory treats it as retired.

What the network says wins it

as parent

How Do The Proof handles it

Arrives in Do The Proof 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

Second presentment
45 days from the chargeback
Issuer pre-arbitration
45 days from the second presentment
Acquirer reply
30 daysThe inventory records this as an unresolved conflict and says to confirm with your acquirer. The other reading is 10 days.
Arbitration
30 to 75 days after the second presentment

There is no second chargeback. After a second presentment the issuer can only go to pre-arbitration and then to arbitration, where fees run from 15 to 500 US dollars.

Where this comes from

Other Mastercard legacy codes

Do The Proof drafts dispute responses for Shopify stores. Connect store