Why disputes matter more for peptide stores
Every processor watches its merchants’ dispute numbers. For a store in a category that already gets a closer review, the margin is thinner. A run of disputes can mean a reserve, a hold on payouts, or a closed account, often with little warning.
A broker that works with peptide merchants puts it plainly on its own page:
“Chargebacks are a major concern, and many peptide merchants end up on the MATCH list due to excessive disputes.”
Source: Corepay, peptide merchant accounts, checked 8 October 2026.
The good news is that most disputes come from a few causes you control: buyers who do not recognize the charge, orders that look lost, and refunds that feel slow. Fix those and the ratio usually follows.
The numbers that count
Visa’s threshold
Visa runs an acquirer monitoring program (VAMP) that watches disputes and fraud across the merchants each processor serves. Its fact sheet sets the level at which a merchant counts as excessive:
“Excessive Merchant threshold reduced to >=150bps in AP, Canada, EU, and U.S. regions on 1 April 2026.”
Source: Visa Acquirer Monitoring Program fact sheet, checked 8 October 2026.
150 basis points is 1.5%. Read that as the outer line, not a target. Processors watch their own numbers and can act long before a store reaches Visa’s level. Ask your processor how it counts your ratio, over which period, and at what level it contacts you.
Mastercard runs its own monitoring programs. We have not put a Mastercard figure here because we have not read it on Mastercard’s own pages. Ask your processor for the numbers it applies.
The MATCH list
MATCH is a list that processors check when a business applies. It records merchants whose accounts were closed for reasons such as excessive disputes. A listing does not stay a private matter between you and one processor: the next processor you apply to will see it. That is why the dispute ratio is worth guarding from the first month.
Common dispute reasons and the evidence for each
Card networks group disputes by reason. The evidence that wins is the evidence that answers the reason the buyer gave, not a pile of everything you have. Here are the common ones:
| Reason | What the buyer says | Evidence that answers it |
|---|---|---|
| Item not received | The buyer says the order never arrived. | Carrier tracking with a delivery scan to the order address, the shipping email with the tracking link, and the order confirmation. |
| Not as described | The buyer says what arrived is not what the page showed. | The product page as it read on the order date, the order confirmation listing the item, and any messages with the buyer. |
| Unrecognized charge | The buyer does not recognize the line on their statement. | The order email sent to the buyer’s address, the billing name on the order, and proof the billing name matches your store. |
| Refund not received | The buyer says a promised refund never came. | The refund record with its date and amount, and the refund policy page as it read on the order date. |
| Duplicate charge | The buyer says they were charged twice. | Both transaction records showing two separate orders, or the refund record for the duplicate. |
A few rules for every answer:
- Answer before the deadline your processor gives you.
- Lead with one sentence that says what happened, then the evidence in the order the sentence mentions it.
- Keep records from the order date: the product page, the policy pages and the emails as they were then.
- If you already refunded the order, say so and attach the refund record.
Prevent the dispute before it starts
The cheapest dispute is the one that never gets filed. Most of prevention is making the order easy to recognize and the store easy to reach:
- A billing name that matches the store. The name on the card statement should be the name on your site and in your emails.
- Order and shipping emails. Send an order confirmation that names the store and the items, and a shipping email with the tracking link.
- A visible refund route. A refund policy page and a contact address that are easy to find. A buyer who can reach you asks you before asking their bank.
- Fast replies. Answer order questions within a day. Silence is what turns a question into a dispute.
- Honest product pages. Describe exactly what is in the box and keep research-use-only notices clear, so nobody receives something they did not expect.
- Refund when in doubt. A refund does not count as a dispute. A chargeback does.
If you run WooCommerce, our page on card checkout for WooCommerce peptide stores covers the store side of a clean checkout.
If your ratio is already climbing
Do not wait for the processor to write to you. A rising ratio is easier to turn around in its first month than its third.
- Read the last thirty disputes. Sort them by reason. One reason usually explains most of them.
- Fix that cause first. A billing name nobody recognizes, a carrier that loses parcels, or a refund page buyers cannot find.
- Answer every open dispute. An unanswered dispute is a lost dispute.
- Tell your processor what you changed. A short note with dates shows you are on it.
How Amino Engine helps
Amino Engine is the merchant processor for peptide brands. Once cards are on, we stay with you: support by email, and help with chargebacks when they come in. What a dispute costs is in writing before your first payment, together with your rate, any setup fee, payout timing and whether any reserve is held.
Everyone can apply, and no processing history is required. New stores, and stores shut down, frozen or declined elsewhere, are welcome. Cards run on your own WooCommerce or Shopify store: Visa, Mastercard, Discover and Amex. If you are weighing offers, our page on high-risk merchant accounts for peptides explains what underwriting looks at.
Quotes checked on their own pages on 8 October 2026. This is general information, not legal advice.