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How to Respond to a American Express P08 “Duplicate Charge” Chargeback
You've had a American Express chargeback with reason code P08. Here's what it means, what to send back, and how to submit it, in plain English.
- American Express P08
- Duplicate Charge
- Type: duplicate charge
What American Express P08 means
Reason code P08 is American Express's code for “Duplicate Charge”. In plain words, the cardholder says they were charged more than once for the same purchase. The bank has pulled the money back for now, and your response is your chance to show the charge was valid.
How American Express handles it
American Express codes start with a letter for their group: P08 is in the “P” group (processing errors). Amex often handles disputes itself and may first send an inquiry asking for information before any chargeback. Answer inquiries quickly and fully, because not responding in time can turn one into a chargeback you can no longer contest.
Why customers file it
- They placed two separate orders that look alike on a statement.
- A pending authorization and the final charge showed up at the same time and looked like two charges.
- A double click at checkout really did create two orders.
- Separate charges for split shipments looked like repeats.
Most of these aren't bad faith. A calm, factual reply with the right documents works better than an argument.
The evidence that matters for P08
These are the documents the DisputeDraft generator checks for this reason code. Send the ones you have:
- Proof Charges Are Separate TransactionsBoth charges side by side, each with its own order number, items and time. Upload: both transaction records.
- Transaction DetailsThe receipt, invoice or order confirmation for the disputed charge. Upload: Original sales receipt, invoice, or order confirmation.
How to submit your response
Paste your letter into your processor's dispute response and upload the evidence. Menus change from time to time, so follow your dispute notice if anything looks different.
Stripe
- Go to Payments → Disputes and open this dispute.
- Click Counter dispute and follow the form.
- Paste the letter as your response and upload the files below.
Stripe accepts only one submission per dispute, so upload everything at once.
PayPal
- Open the Resolution Center and find this case (look under “Needs your attention”).
- Click Respond and choose the option to provide evidence.
- Paste the letter and upload the files below.
Use the response due date shown on the case.
Shopify Payments
- Go to Orders and open the order with the chargeback.
- Click Submit response in the chargeback banner.
- Paste the letter in the notes and add the files below as evidence.
You can add evidence until the due date; Shopify sends your response to the card company then.
Etsy Payments
- Find the email Etsy sent about this chargeback.
- Reply with the letter and the files below, as that email asks.
- Keep a copy of what you sent.
Etsy’s email gives the time frame to reply; Etsy passes your information to the bank.
Common mistakes
- Not checking first whether it really is a duplicate. If it is, refund or accept.
- Sending one order instead of both charges side by side.
- Leaving out what makes each charge different: order number, items, time.
Deadline reminder
Submit before the deadline on your dispute notice: late responses lose automatically.
Your processor sets its own response date, which is usually earlier than the bank's. Use the date on your dispute notice, not one you've read online.
Write your American Express P08 letter free
Opens the generator with American Express and P08 already selected. Nothing you type leaves your browser.
Write your letter freeFAQ
How do I show the charges are separate?
Put both orders side by side: order numbers, items, amounts and times. If they shipped separately, include both trackings.
What if it really was charged twice?
Refund the duplicate or accept the dispute. Arguing a real duplicate wastes your time and the customer's.
Could a pending authorization look like a duplicate?
Yes. A pending hold and the final charge can appear together for a while. Your payment records show which one actually went through.
Is American Express P08 the same as other “duplicate charge” codes?
Other networks have their own codes for the same kind of dispute. The evidence is similar, but always use the exact code on your dispute notice (American Express P08 here).
Related guides
This guide is general information, not legal advice. It can't guarantee an outcome. Networks revise their reason codes, so always follow the code and deadline on your processor's dispute notice.