American Express Dispute CenterHow to File and Respond to Amex Disputes

Harlan Hutson
Harlan Hutson | February 11, 2025 | 11 min read

This featured video was created using artificial intelligence. The article, however, was written and edited by actual payment experts.

What is the American Express Dispute Center

In a Nutshell

American Express payment disputes present a unique challenge for merchants. But understanding how the Amex Dispute Center works is a great first step for any merchant. In this article, we’ll tour the Dispute Center. We will describe its primary functions and explain the various dispute processes. We’ll also identify the situations under which you should file a dispute, and discuss the differences between Amex disputes and traditional chargebacks.

The American Express Dispute Support Center Covers a Lot of Information. Here are the Key Points.

Got hit with an Amex cardholder dispute?

Not to worry; it happens to everyone that accepts American Express cards from time to time. But, that doesn’t mean you have to just accept the losses that will result from a dispute.

There is a lot of information buried in the American Express dispute center for merchants, though. It can be hard to comb through and find the info you need. That’s why I wanted to offer a quick rundown of the key points that you’ll find there, and give you a basic overview of what you need to know before going into an Amex card dispute.

Acceptable Reasons to Dispute an Amex Charge

The cardholder’s right to open a dispute on questionable credit card charges is protected by law. However, the case has to meet some basic requirements:

Acceptable Reason

The disputed charge is a legitimate error

All disputed charges must be legitimate billing errors: such as incorrect dates or amounts, returns, canceled orders that weren’t credited, or goods that weren’t delivered as agreed.

Acceptable Reason

An “open-ended” credit account was charged

Only “open-ended” credit accounts—accounts like credit cards or department store accounts where you can make repeated withdrawals and payments—are eligible for dispute. Installment loans or similar extensions of credit are not covered.

Acceptable Reason

The buyer acts fast

Buyers have 60 days to file a dispute through the American Express Dispute Center, from the day they receive the erroneous bill. If they wait longer, it’s not guaranteed the credit issuer will acknowledge the dispute.

Acceptable Reason

The buyer tried to resolve it with the merchant

The buyer must have first made a good faith attempt to resolve the issue with the seller. This means contacting the seller directly and attempting everything in their power to get the merchant to make the situation right.

Acceptable Reason

The buyer experiences buyer's remorse

Customers should be aware that American Express doesn’t cover buyer’s remorse under any circumstance. They should be very sure they want an item before it is purchased. If a dispute is filed, and the seller can prove it arrived as advertised, the buyer may face potential fees or even lose account privileges.

My point is that card members can dispute a charge for lots of reasons. Whether it’s because they think they were charged twice, they disagree with the amount, they don’t recognize the charge on their billing statement, or they didn’t receive the goods or services — this step-by-step flowchart should help make the process clearer for you:

STEP 1
A person with a credit card disputing the charge

A Charge is Disputed

If a cardholder doesn’t recognize a charge or believes that they are a victim of fraud, they may contact Amex within 120 days of the transaction and raise a dispute. Amex will work with the cardholder to resolve the case. If necessary, Amex may reach out with an inquiry or an upfront chargeback.

STEP 2
American Express Dispute Center

Inquiry

Request for additional information.

Click for more
OR
Upfront Chargeback

Upfront Chargeback

Preliminay payment reversal.

Click for more
STEP 3
Calendar icon with the number 20

Response

You’ll have 20 days to respond with the requested documents.

STEP 4
Checkmark - Completed

Case Resolved

Your reply addressed the dispute successfully and there won’t be a chargeback filed.

OR
Upfront Chargeback

Chargeback

If you don’t reply in time or your reply doesn’t address the dispute, your account will be debited.

STEP 3
Calendar icon with the number 20

Response

You’ll have 20 days to respond with the requested documents.

STEP 4
Reverse arrow

Reversal

Your reply addressed the dispute successfully and the chargeback will be reversed.

OR
Chargeback icon

Chargeback Stands

If you don’t reply in time or your reply doesn’t address the dispute, your account the chargeback will stand.

Did You Know?

You can use the “View Timeline Details” link at the top of the page to get even more granular information about each dispute’s response deadlines.

How to Manage Amex Disputes Online

Merchants can manage Amex disputes online by logging in through the Merchant Home page.

Once signed in, click on the “Disputes” tab near the top of your screen to see a summary view of all your disputes. By default, you will see open and unresolved disputes first; these cases are ordered by their response deadline to help you prioritize the most urgent disputes.

Common QuestionHow do I report an unauthorized Amex transaction?Cardholders can visit the Security Center to file an unauthorized transaction dispute. After providing the information requested, American Express will prompt the cardholder to change their password and answer security questions to help protect them from further unauthorized activity. They will then investigate the transaction, and provide confirmation to the cardholder via email.

Your summary view will display the dispute case number, reason, type, and response deadline. You may customize this view to include dozens of additional data elements, such as the acquirer reference number, the cardholder’s name, and card number associated with the transaction under dispute. Additionally, you may filter disputes by amount, type, and merchant ID.

You can also view disputes individually by clicking on the dispute’s case number. This view will allow you to see all the information Amex has about a specific dispute, including the amount under dispute, the transaction date, dispute status, dispute type, case type, reason code, and when you need to respond by, along with additional notes from Amex about the case.

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How to Submit a Response To a Dispute

To submit a response to a dispute, log into your Amex merchant account and select the “Disputes” tab towards the top of your screen. As mentioned above, you’ll see a summary view of all disputes filed against you, ordered by the number of days you have left to respond.

Clicking on a hyperlinked case number in your summary view will pull up a specific dispute. Once in this detailed view, you’ll have the ability to take action against the dispute.

You’ll be able to choose between one of two prompts:

Option 1  |  Agree to Full Refund

This is the most straightforward option. If the cardholder filed a valid dispute, perhaps because they were billed in error or received damaged, defective, or missing goods, you may accept the dispute and have Amex issue a refund on your behalf. This will result in a chargeback.

Important!

Regardless of which option you choose to pursue, you’ll have the opportunity to offer comments about the dispute, which Amex will receive and may review.

Option 2  |  Respond

If you believe the Amex cardholder filed an invalid dispute, or you only wish to refund a portion of the disputed amount, you may challenge it through the Amex merchant portal. You’ll need to specify the reason you disagree with the cardholder, attach compelling evidence that shows you are in the right, and offer relevant comments about the transaction that strengthen your case.

Important!

You may attach invoices, receipts, emails from the cardholder, a copy of your return policy, and other forms of transaction documentation as evidence. However, Amex limits uploads to PDF, JPG, TIFF, and DOC/DOCX file formats. Images are limited to a maximum resolution 300 DPI, and all documents must individually be 5MB or smaller. In total, attached files may not exceed 25MB, and you may provide at most 20 pages or five files worth of evidence per dispute.

How to Review Closed Disputes

You can also review closed disputes through your American Express merchant dashboard.

Navigate to the “Disputes” tab towards the top of the screen. In the menu bar that appears to the left, click on the “Closed Disputes” link. You can filter closed cases by location, date, MID, and more.

Each closed dispute will show the case number, transaction amount, the date the dispute was closed, and its outcome.

You can also view, create, and download a custom win/loss report as a Microsoft Excel file. You can analyze this data for clues on how to optimize your chargeback win rates in the future.

Did You Know?

Cardholders can check the status of an ongoing dispute by taking the following steps:

  • Login to the Amex account in question
  • Visit the Inquiry and Dispute Center
  • Click on “Manage My Disputes”
  • Locate the open dispute in the “View/Cancel Open Disputes” section
  • Click on “Cancel/View Status”
Common QuestionHow long does it take to resolve disputes?Most disputes are resolved within a month. However, complex cases could require additional time.

What Happens Next?

Keep in mind that the Amex disputes can’t resolve every problem. Also, American Express reserves the right to file a chargeback on behalf of their customers at any time. Although this policy seems harmless enough, it can sometimes be downright problematic.

These days, the chargeback scales mentioned above are far from balanced. Merchants are almost always unfairly represented in a chargeback dispute. There are two main culprits here:

Unfairly Represented Chargeback

Amex and other card networks generally err on the side of their cardholders because it proves less costly and more prudent.

Unfairly Represented Chargeback

Inattentive or dishonest cardholders can process illegitimate disputes. As such, friendly fraud and other forms of cyber shoplifting now account for more than 60% of all incoming chargebacks across the globe.

The good news is that the card networks have been paying attention.

Each network has expanded its dispute resolution efforts through simplified online portals like the American Express Dispute Center. While it won’t prevent every chargeback a merchant might receive, it can eliminate many disputes that might otherwise have been chargebacks.

Have Other Questions?

Fighting chargebacks is a complicated, time-intensive process. American Express offers as much support as possible, but ultimately, the bulk of the work will fall on your shoulders.

To learn how chargeback management can help beyond the minimal assistance offered through American Express and other networks, talk to Chargebacks911® about a free chargeback analysis today.

FAQs

How do disputes work with American Express?

The American Express dispute process starts when a cardholder contacts Amex to dispute a charge within 120 days of the transaction processing date. Depending on the information provided by the cardholder, Amex may seek more information from the merchant or pursue a chargeback upfront.

In the former case, merchants who respond within 20 days by submitting compelling evidence may be able to avoid any revenue loss. However, failure to respond within the stipulated timeframe results in a chargeback. In the latter case, merchants may be able to reverse the chargeback by providing clear and convincing evidence in representment. Otherwise, the chargeback is upheld and the merchant loses the dispute.

How long does an Amex dispute take?

Typically, an Amex dispute can take anywhere from 30 to 90 days to resolve, depending on the complexity of the issue.

What if my American Express dispute is denied?

If your American Express dispute is denied, Amex will reverse the provisional credit previously issued to you and offer a written explanation of why your dispute claim was rejected. If you disagree with their decision, you may be able to appeal in writing or provide more evidence to support your dispute claim.

What happens when Amex closes a dispute?

When Amex closes a dispute, the case is considered resolved and archived in the “Closed Disputes” table accessible via the “Support Center” icon. If the resolution favors the cardholder, they retain their provisional credit, and funds are permanently removed from the merchant’s account. However, if it favors the merchant, the cardholder’s provisional credit is reversed, and funds associated with the dispute are returned to the merchant.

What is the difference between dispute and chargeback on American Express card?

A dispute occurs when a cardholder contacts Amex to seek clarification about a transaction charge. On the other hand, a chargeback occurs when a dispute is upheld and a cardholder seeks a reversal of the disputed charge. During the chargeback investigation process, the disputed amount is debited from the merchant’s account and credited to the cardholder’s account. Depending on the outcome of the investigation, the chargeback may be reversed or upheld.

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