Amex Reason Code A01: Charge Exceeds Authorization

Amex reason code A01 means the charge amount is more than the approved amount. The approved authorization was less than the charge you submitted. The cardholder saw a bigger bill than the one they agreed to, and their issuer let you know.

What is Amex reason code A01?

A01 sits in the Authorization group of Amex reason codes. It fires when the amount you charged does not match the amount that was approved. Maybe you added a tip after the fact, or a deposit grew, or a final total came in above the estimate. Whatever the cause, the approved number and the billed number do not line up.

A disputed charge is first worked on with the Card Member before you hear anything. If Amex needs more facts, you get either an Inquiry or a Chargeback. An Inquiry means the Card Member disputed a charge that could not be resolved with the documents on file. In some cases, if the Card Member gives enough information, your account may be debited upfront.

Common causes of an A01 chargeback

A few habits cause most A01 disputes:

• You authorized a small hold, then charged the full total without a new approval.
• You added fees, tips or extra charges after the first approval.
• The final bill was higher than the quote, and you billed the extra amount without asking.
• Staff keyed in a wrong amount, or a terminal sent the charge without rechecking the approved figure.

None of these require bad intent. A busy counter and an old approval are all it takes. Related codes cover nearby problems. If no valid authorization exists at all, that is A02. If the approval expired before you sent the charge, that is A08. If the amount was simply wrong, that is P05.

How to prevent A01 chargebacks

To prevent A01, keep your numbers matched:

• Authorize the full expected amount up front. If the final total may grow, authorize the higher figure.
• If the charge will be more than the approved amount, get a new approval for the full charge first.
• Tell the customer before you add anything to the bill. A surprise on the statement is what starts the dispute.
• Train staff to void and reauthorize rather than bumping a charge past its approval.

How to respond to an A01 chargeback

When the notice arrives, read it first. If you are not sure what the notice is telling you, start with how to read a chargeback notice.

The best way to respond is online through your Merchant Account. Your reply has one job: show that a valid authorization was obtained for the full charge amount. If you can show that, the dispute should end in your favor. If you cannot, the chargeback stands.

Required documentation for A01

Your papers should include a copy of the charge record or credit record. Beyond that, send whatever proves the full amount was approved:

• The approval record. It shows the approved amount matches the billed amount.
• Any new approval you got before you billed the higher total.
• The signed order form, contract or estimate, if it shows they agreed to the final amount.
• Emails or messages where the customer approved the added amount.

A good reply explains the documents, addresses the specific dispute reason and describes the steps taken to resolve it. Do not just attach files and hope. Say what each page shows and why it answers the claim.

What happens after you respond

If your reply settles the dispute on time, there is no Chargeback. After a Chargeback, you can send supporting documents that might reverse it. The Chargeback is undone if your reply answers the dispute well and on time. If you do not reply in time, or you do not send the requested documents, the Chargeback stands.

The case is not always over when you think it is. For the rounds that can follow, see what happens after you answer a chargeback. Keep copies of everything you sent, and answer any new notice just as fast as the first.

Sources

• americanexpress.com