What Is a Chargeback?

A chargeback (also called a card payment dispute or transaction reversal) is when a cardholder's issuing bank forcibly pulls funds back from a merchant after the cardholder disputes a charge. The merchant's acquirer debits the disputed amount plus a fee — typically 15 to 30 GBP — and the merchant can either accept the loss or contest it with evidence through a process called representment. Each card network runs its own dispute timetable: Visa uses Resolve Online (VROL) and Mastercard uses Mastercom, and the cardholder usually has 120 days from the transaction date to start one. Chargebacks were built to protect consumers from fraud, but they're now one of the biggest financial risks any card-accepting business faces.

A chargeback isn't the same thing as a refund, even though both end with the customer getting their money back. With a refund, we choose to reverse the payment — the customer asks, we agree, the funds go back. A card payment dispute is the opposite: the customer goes straight to their bank, the bank takes our money without our agreement, and we're left fighting to get it back. The disputed amount, the chargeback fee, the staff hours pulling together evidence, the hit to our chargeback ratio — it adds up fast. And if that ratio creeps above 1% of monthly transactions, Visa's Dispute Monitoring Program or Mastercard's Excessive Chargeback Program kicks in, which means fines, higher rates, and in the worst case losing the merchant account altogether.

What Is a Chargeback?

A chargeback is a card payment reversal started by the cardholder's bank. The customer disputes a transaction — claiming it wasn't authorised, the goods never turned up, or what arrived wasn't what they ordered — and their issuer can forcibly pull the funds back from the merchant.

The system was originally a consumer protection backstop, giving cardholders somewhere to go if a merchant ripped them off or their card was used fraudulently. These days it's evolved into a serious cost centre for merchants, especially as friendly fraud — customers gaming the system to reverse legitimate purchases — has exploded.

How the Chargeback Process Works

A chargeback involves several parties and typically goes like this:

• Step 1 — Customer disputes. The cardholder contacts their bank (the card issuer) to dispute the transaction, citing a reason code
• Step 2 — Issuer reviews. The issuer weighs up the claim and, if it stacks up, opens a chargeback
• Step 3 — Acquirer notified. The chargeback travels through the card network to the merchant's acquiring bank
• Step 4 — Funds debited. The transaction amount comes out of the merchant's account, along with a chargeback fee (typically 15 to 25 GBP)
• Step 5 — Merchant notified. The merchant gets the notification and decides whether to accept the chargeback or fight it through representment

Start to finish, the process takes anywhere from a few weeks to several months.

Common Chargeback Reason Codes

Each card network has its own reason code system, but the most common categories shake out like this:

• Fraud / Unauthorised transaction — the cardholder says they didn't authorise the payment
• Goods or services not received — the customer claims they never got what they paid for
• Product not as described — what turned up didn't match what was advertised
• Processing errors — duplicate charges, wrong amounts, technical issues
• Cancelled recurring payment — the customer cancelled a subscription but was still billed

The True Cost of Chargebacks

Chargebacks cost a lot more than most merchants reckon. Here's where it lands:

• The transaction amount. The full payment is reversed, but you've already delivered the goods or service
• Chargeback fees. Your acquirer charges a fee per chargeback — typically 15 to 25 GBP
• Administrative costs. Staff time gathering evidence, replying to disputes, and managing the back-and-forth
• Higher processing rates. Merchants with high chargeback ratios get hit with increased processing fees
• Monitoring programmes. If your chargeback ratio breaks the card brand thresholds (usually 1% of transactions), you land in a monitoring programme with extra fines and reporting requirements
• Account termination. Persistently high chargeback ratios can end with your acquirer closing your merchant account

Preventing Chargebacks

Cutting chargebacks takes a layered approach:

Clear Communication

A lot of chargebacks come from misunderstandings. Make sure your business name on card statements is recognisable, write clear product descriptions, communicate delivery timescales, and put your refund policy somewhere customers can actually find it.

Fraud Prevention

Use AVS (Address Verification Service), CVV verification, and 3D Secure on online transactions to cut unauthorised use of stolen cards.

Good Customer Service

Make it easy for customers to reach you and sort issues directly. A lot of chargebacks happen because the customer couldn't get hold of the merchant or gave up trying. A straightforward refund process is cheaper than a chargeback every single time.

Transaction Records

Keep detailed records of every transaction — order confirmations, delivery tracking, customer correspondence, signed agreements, and call recordings (where it's PCI-compliant to do so). This evidence is what wins representment cases.

Chargebacks and Telephone Payments

Phone payments — MOTO transactions — carry a higher chargeback risk than face-to-face because the card isn't physically present. Without 3D Secure (which doesn't apply to MOTO), there's no liability shift to the issuer.

That means the merchant carries the full liability on fraudulent phone payments. To push back on the risk:

• Collect and verify the CVV on every telephone transaction
• Run AVS to check the billing address
• Keep recordings or logs of the customer interaction (in a PCI-compliant way)
• Train agents to spot suspicious behaviour — unusual order sizes, repeated failed attempts, customers reluctant to provide verification details

Secure telephone payment platforms that capture card data through the customer's keypad (rather than the agent's headset) also provide a clear audit trail showing the cardholder typed their own details. That evidence is gold during a chargeback dispute.

Chargebacks vs Refunds

Refunds and chargebacks both end with the customer getting their money back, but the routes are completely different. A refund is initiated by the merchant — the customer asks, the merchant agrees, the funds go back. A chargeback is initiated by the customer's bank without the merchant's agreement. Chargebacks carry fees, take longer to resolve, count against your chargeback ratio, and can do real damage to your ability to process payments. Wherever you can, resolving disputes through direct refunds beats letting them escalate to a chargeback every time.