R13

Amex Reason Code R13: What It Means and What to Do

R13 means you did not answer an Amex Inquiry on time. Here is why it happens and how to fight it if you did reply.

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American Express
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Amex reason code R13 is a No reply chargeback. It does not mean the customer won the dispute on the facts. It means American Express never got your answer to an Inquiry, or got it too late. That difference matters, because you may still be able to fix it.

What is Amex reason code R13?

R13 sits in the Inquiry/Miscellaneous group of Amex reason codes. The code means the merchant's response to an Inquiry was not received in time.

An Inquiry is an early step in an Amex dispute. A disputed charge is first worked on with the Card Member before the merchant is contacted. If more information is needed, the merchant receives either an Inquiry or a Chargeback. You get an Inquiry when a Card Member disputes a charge that cannot be resolved with the documents on file.

So an Inquiry is Amex asking you for proof. R13 is what happens when that request goes unanswered. If your reply settles the dispute on time, there is no Chargeback at all.

Why does R13 happen?

Most R13 cases come from a missed deadline or a missed notice. Common causes:

  • The Inquiry notice went to an old email address or an unread mailbox.
  • No one at the business was assigned to watch for dispute notices.
  • The reply was sent but arrived after the deadline.
  • The reply was sent to the wrong place, so Amex never logged it.

Note that the money may have already moved. If the Card Member gives enough information, the merchant's account may be debited upfront. An unanswered Inquiry then turns that debit into a lost case.

If you are new to Amex notices in general, start with how to read a chargeback notice.

How to prevent an R13 chargeback

Prevention is about seeing the Inquiry and answering it before the deadline.

  • Watch one place. The best way for a merchant to respond to a dispute is online through its Merchant Account. Check it often, and make sure more than one person can log in.

  • Fix your contact details. Keep the email and mailing address on your merchant account current. A notice sent to a dead address still starts the clock.

  • Answer every Inquiry, even weak ones. A reply that settles the dispute on time stops the Chargeback before it exists. Silence never helps you.

  • Calendar the deadline the day the notice arrives. Late replies count as no reply. Treat the date on the notice as the real deadline, not the date you plan to send.

How to respond to an R13 chargeback

After a Chargeback, the merchant can send supporting documents that might reverse it. The Chargeback is undone if the merchant's reply addresses the dispute reason successfully and on time.

Your first move is to check what actually happened. Did you reply to the Inquiry? Do you have proof of when you sent it and what it said?

If you did reply in time, say so plainly and attach the proof. A merchant can send proof it answered the original Inquiry in time. That is the whole case here. R13 is about the missing reply, not about the original dispute, so spend your effort showing the reply existed.

If you never replied, the case is harder. Send the documents you would have sent for the Inquiry anyway. It may still be worth a try, but know that the code itself is against you.

If the merchant does not reply in time or with the requested documents, the Chargeback stands. For what happens after you send proof in general, see what happens after you answer a chargeback.

Key documents and proof for fighting R13

Your reply should do three things. A good reply explains the documents, addresses the specific dispute reason and describes the steps taken to resolve it.

For an R13, include:

  • Proof of your original Inquiry response. A copy of what you sent, with the date you sent it.

  • Proof of delivery or receipt. A confirmation screen, email receipt, or portal record showing Amex got it before the deadline.

  • A copy of the charge record or credit record. Merchant supporting documents should include this in any dispute reply.

  • A short cover note. State that you answered the Inquiry on time, name the date, and list what each attached page shows.

Keep it short and label everything. The person reading your file should be able to see, in under a minute, that a timely reply exists.

The short version

R13 means Amex never got your Inquiry answer on time. If you did answer, gather the proof and send it fast. If you did not, fix the process that let the notice slip by, so the next Inquiry does not become the next R13.

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