Chargeback Response Builder for Canadian Merchants

How to Respond to a Chargeback in Canada: What Actually Matters

Canadian merchants lose more chargebacks than they should — not because their cases are weak, but because they submit the wrong evidence or miss the deadline entirely. Card networks like Visa and Mastercard operate global rules, but how those rules surface depends on your processor, your dispute reason code, and the evidence type that actually answers the claim.

A chargeback is not a customer complaint — it is a formal dispute initiated through the cardholder's bank. Once it is filed, you have a fixed window to respond with specific documentation. Generic "we fulfilled the order" arguments rarely move outcomes. What moves outcomes is evidence that directly contradicts the specific reason code.

Processor Response Deadlines at a Glance

Missing your window means automatic loss. These are typical windows — always check your current processor agreement, as deadlines can change:

The Evidence That Actually Wins Disputes

Networks expect evidence matched to the dispute reason. Submitting a terms-of-service screenshot when the reason code is "fraud" will not help you — it answers a different question than the one being asked. Here is the rough hierarchy by dispute type:

• Fraud / Unauthorized: AVS match, CVV match, 3-D Secure authentication (strongest single piece), device fingerprint, IP address, prior order history from the same card.
• Not Received: Carrier tracking showing delivery to exact address, signature confirmation, Canada Post delivery scan, digital download logs with IP and timestamp.
• Not as Described: Product photos, specification sheets, customer-approved mockups, communication records showing no objection at delivery, return policy and proof you offered it.
• Duplicate Charge: Transaction records proving the two charges were for separate orders, or evidence that a refund was already issued for one.
• Subscription Cancelled: Your cancellation policy (must have been visible pre-purchase), evidence the cancellation was not received before the billing date, communication log.
• Credit Not Processed: Proof a refund was already issued (bank confirmation, processor refund record with date), or why a refund was not owed under your policy.

When to Accept a Chargeback Instead of Fighting It

Fighting every chargeback is a mistake. Your chargeback ratio matters to processors — sustained ratios above 1% can trigger account reviews or termination. Accepting a clean merchant-error chargeback fast is healthier for your ratio than losing a contest that you entered with weak evidence.

Accept the chargeback when: the order was genuinely never shipped, you already issued a refund that the customer re-disputed, delivery proof is completely absent, or the dispute value is under roughly $40 and your staff time costs more than the recovery. Fight when you have strong, dated, document-backed evidence that directly contradicts the stated reason code.

Why Canadian Small Merchants Often Lose Winnable Disputes

The most common failure modes are: waiting too long (missing the deadline entirely), submitting irrelevant documentation, using vague free-text explanations instead of structured evidence, and not knowing which specific reason code the network assigned. When you receive a chargeback, check the reason code first — it tells you exactly what the cardholder claimed and what evidence the network expects to see in rebuttal.

Shopify Payments and Stripe give you the reason code clearly in the dashboard. Moneris merchants may need to dig into their Merchant Direct portal or call their rep for the full dispute detail. Helcim typically provides a dispute letter with the code included.