Amazon.sg A-to-z Claims and Chargebacks: A Seller's Guide

On Amazon.sg, a buyer who bought from a third-party seller can ask Amazon for an A-to-z Guarantee refund if the order is late, damaged, defective or "materially different" from the listing. Before they can, Amazon's own help page says they must contact the seller through their account and wait two business days for a response. That two-day gap is your best chance to settle the problem before an Amazon A-to-z claim is opened against you, and it is the part of the process most sellers underuse.

This guide explains how A-to-z Guarantee claims and card chargebacks work for Amazon.sg sellers, what evidence matters for each, and how to set up your operation so the evidence already exists when a claim arrives. It is general information about Amazon's published policies, not legal advice, and Amazon can change its rules, so check the current version in Seller Central before acting on any deadline.

Key Takeaways

• A buyer usually has to contact you first and wait two business days before filing an A-to-z claim, so fast, documented replies in Buyer-Seller Messaging are your first line of defence.
• A-to-z claims and service-related chargebacks are both order "defects" that can count against your Order Defect Rate, which Amazon says should stay under 1% over a 60-day period.
• Winning depends on records you create before the claim: tracking, delivery confirmation, packing photos and a clean message history.

When a Buyer Can File an Amazon A-to-z Claim

Amazon.sg's A-to-z Guarantee page lists the conditions a buyer must meet before submitting a refund request. All of the following must apply at the time of writing (October 2026):

• The buyer has contacted the seller through their Amazon account. For items that arrived damaged, defective or materially different, they should request a return when contacting you.
• The buyer has waited two business days for your response.
• The request fits one of Amazon's listed conditions, such as:
• The item was not delivered by three calendar days past the maximum estimated delivery date, or tracking shows a delivery confirmation, whichever is sooner.
• The buyer returned an item in line with Amazon's return policy but was not refunded, or received the wrong amount. For this, the buyer must contact the seller within 15 days of receiving the item (or by the end of an extended returns period, if later) and postmark the return within 15 days of arranging it with the seller.
• You agreed to refund or replace the item and did not follow through.
• An international return where the seller does not provide a Singapore return address, a prepaid return label, or a full refund without requiring the item back.
• The buyer was charged extra on top of the purchase and shipping costs and the seller did not cover them.
• The claim is filed within 90 days of the estimated delivery date.

Amazon.sg also states what the guarantee does not cover: digital items, payments for services and stored value instruments. Importantly for sellers, the same page says that if a buyer files a chargeback with their bank or payment provider, they are not eligible for an A-to-z refund on that purchase. A single complaint therefore usually travels down one path or the other, not both.

If Amazon denies a buyer's request, the buyer can appeal within 30 calendar days of the decision, and Amazon says appeals can take up to one week to review. Expect some claims to come back a second time with new material.

What Happens on the Seller Side

Amazon reviews the claim and decides whether the buyer gets refunded. Amazon.sg's buyer help notes that for some claims, Amazon may ask the buyer to send files directly to the seller through Buyer-Seller Messaging, which is one more reason to keep that channel tidy and monitored.

The exact response window for sellers is shown on the claim itself in Seller Central (under the Performance menu). We could not open Amazon.sg's seller-side help page for A-to-z claims for verification at the time of writing, so we have not quoted a number here. Treat the deadline on the notification as the only one that counts, and respond well before it.

If a claim is granted against you and you believe it was wrong, Amazon's seller guidance says you can appeal the decision and provide supporting evidence showing why the claim was invalid.

How Amazon Chargebacks Differ From A-to-z Claims

A chargeback starts at the buyer's bank, not at Amazon. Amazon's seller guide to chargebacks (published on its US seller site, December 2025) describes two broad types:

• Fraud-related chargebacks, such as a stolen card or a buyer saying they did not make the purchase. Amazon says it is responsible for handling these, and they do not count against your Order Defect Rate.
• Service-related chargebacks, where the buyer acknowledges the purchase but reports a problem, for example non-receipt. These are the seller's responsibility.

For service-related chargebacks, Amazon asks for information about the order, and you can either refund the buyer or "represent your case" with evidence that the transaction was valid. Amazon's guide asks for the shipping date, shipping method and tracking information, plus supporting evidence such as communications with the customer, proof of delivery and product information. The buyer does not see what you submit; an Amazon investigator prepares the documentation for the buyer's bank.

Two timing points from the same guide matter. If you receive a chargeback alert by email, respond within seven calendar days of the email date. And the whole process can take 90 days or longer from the date the buyer contacts their bank.

Amazon also notes that the bank's decision is typically final and cannot be appealed, so your first submission is usually your only one. That guide is written for Amazon's US store, so confirm the deadline shown in Amazon.sg Seller Central for your own account.

Why These Claims Matter: Order Defect Rate

Amazon measures customer experience with the Order Defect Rate (ODR). According to Amazon's seller guide, an order counts as a defect if it receives negative feedback (one or two stars), an A-to-z Guarantee claim that is not denied, or a chargeback claim. The target is an ODR below 1% of orders over a 60-day period.

For example, suppose you shipped 300 orders in the last 60 days. Under a 1% target, three defects of any kind would already put you at the limit. Amazon's guide warns that a high rate of service-related chargebacks can put selling privileges at risk. You can check your figures in Seller Central under Performance, then Account Health.

The practical lesson: a claim you could have prevented with a two-business-day reply costs you more than the refund. It also uses up part of a very small defect budget.

What Evidence Matters, by Claim Type

The table below maps common claim reasons to the records that answer them. It draws on the evidence Amazon itself asks for in chargebacks (shipping date, method, tracking, proof of delivery, communications, product information) and applies the same logic to A-to-z claims.

Buyer's claim	Evidence that answers it	When you need to capture it
Item not received	Carrier, tracking number, delivery scan or photo, address match with the order	At dispatch and on delivery
Item damaged in transit	Packing photos showing condition and protective packaging, carrier handover record	At packing
Wrong or missing item	Photo of the packed order with the label or order number visible, SKU check	At packing
Not as described	Listing screenshot at the time of sale, product specifications, photos of the actual unit	When listing and at packing
Return not refunded	Return tracking, date received, inspection photos, refund record	On return receipt
Seller did not respond	Buyer-Seller Messaging history with timestamps	Every reply

Two habits make the biggest difference. First, photograph each order at the packing station with the order identifier in frame, so damage and wrong-item claims can be checked against what actually left your hands. Our packing station evidence SOP walks through a simple setup. Second, for non-receipt claims, delivery confirmation is the strongest single document you can have; our guide to proving delivery for item-not-received claims covers what a carrier record should show.

A Response Checklist for Amazon.sg Sellers

Use this when a buyer complains, a claim opens, or a chargeback alert arrives:

1. Read the buyer's message within one business day. The two-business-day window before an A-to-z claim is your chance to fix the problem directly.
2. Offer the remedy Amazon's policy would offer anyway. If the item is late beyond the estimated window or arrived faulty, a prompt refund or replacement usually costs less than a defect.
3. Pull the order file. Tracking, delivery scan, packing photos, listing screenshot, and every message.
4. Check the claim type. Is it non-receipt, damage, wrong item, not-as-described, or a return refund problem? Match your evidence to that reason only.
5. Write a short, factual response. Dates, tracking numbers, what was shipped, what the photos show. Avoid opinions about the buyer.
6. Submit before the deadline shown in Seller Central, not the deadline you remember.
7. For chargebacks, decide early: refund, or represent with evidence. Amazon's guide says the bank's decision is typically final.
8. Log the outcome. Note the reason, evidence used and result, so you can see which product lines or carriers produce repeat claims.

Prevention That Shows Up in Your Metrics

Most A-to-z claims and service chargebacks trace back to a handful of causes: optimistic delivery estimates, unclear listings, weak packaging and slow replies. Amazon's own chargeback guide recommends accurate product images and descriptions, accurate delivery estimates, appropriate packaging, trackable shipping with delivery confirmation for high-value orders, and keeping records of tracking and ship dates.

Patterns help too. If one buyer account repeatedly reports non-receipt on tracked deliveries, that is a signal worth reviewing with your carrier, not a verdict on the buyer. Keep notes factual so you can spot repeats across your own order history; our piece on organising evidence for disputes shows a simple filing structure.

Frequently Asked Questions

How long does a buyer have to file an A-to-z claim on Amazon.sg?

Amazon.sg's help page says the claim must be filed within 90 days of the estimated delivery date, after the buyer has contacted the seller and waited two business days for a response. Return-related claims have extra conditions, including contacting the seller within 15 days of receiving the item.

Can a buyer file an A-to-z claim and a chargeback for the same order?

According to Amazon.sg, a buyer who files a chargeback with their bank or payment provider is not eligible for a refund under the A-to-z Guarantee. In practice, one complaint usually follows one route.

Do fraud chargebacks count against my Order Defect Rate?

Amazon's seller guide says fraud-related chargebacks do not count against your ODR, and Amazon handles them. Service-related chargebacks on seller-fulfilled orders count if the bank decides in the buyer's favour.

Can I appeal a chargeback decision?

Amazon's guide says that if you believe you were debited for a chargeback in error you can reply to the email, but the bank's decision is typically final. Put your full evidence into the first response.

Does Hail Pilot connect to Amazon?

Not at present. The process in this guide works with any well-kept order file, whichever tools you use.

Keep the Evidence Ready Before the Claim

A-to-z claims and chargebacks reward sellers who can show what happened, quickly. If you also sell on Shopee, Lazada, TikTok Shop or Shopify, Hail Pilot helps you capture packing and dispatch evidence, track dispute and return deadlines, and keep each case's records in one place so you can respond before the clock runs out. See how it works at hailpilot.com.