Credit Card Dispute / Chargeback Letter (Singapore)

A Credit Card Dispute / Chargeback Letter in Singapore sets out the writer's position and the response or action requested from the recipient.

MAS Notice 635, issued by the Monetary Authority of Singapore under section 55 of the Banking Act 1970 (Cap. 19), establishes the liability framework for unauthorised e-payment transactions in Singapore. The Notice requires banks to allocate liability for unauthorised transactions by reference to whether the account holder took reasonable precautions to protect their payment credentials. Where the account holder did not authorise the transaction and took reasonable precautions (did not share their PIN, card details, or one-time password (OTP) with anyone), the bank bears the loss. Where the account holder was grossly negligent (for example, shared their OTP or card details with a fraudster), liability may shift to the account holder.

The chargeback mechanism operates through the card network's rules. Visa's dispute resolution procedures and Mastercard's Chargeback Guide set out the specific reason codes, timelines, and documentation requirements for each category of dispute. For Visa cardholders, most disputes must be raised within 120 days of the transaction date or the expected delivery date. Mastercard applies a 120-day window from the date of the first event giving rise to the dispute. American Express has its own dispute resolution framework with similar principles. Under all three schemes, if the issuing bank's dispute team validates the cardholder's claim, the issuer initiates a chargeback against the merchant's acquiring bank, which then recovers the funds from the merchant.

FIDReC — the Financial Industry Disputes Resolution Centre — is Singapore's independent dispute resolution body for financial disputes between consumers and financial institutions. Established in 2005 and operating under Terms of Reference approved by MAS, FIDReC provides mediation and adjudication for disputes up to S$100,000. If a bank rejects a dispute and the cardholder disagrees, escalation to FIDReC is the next step before litigation in the State Courts or High Court.

For disputes involving suspected fraud, account holders should also file a police report with the Singapore Police Force (SPF) through the SPF's electronic report system or at any Neighbourhood Police Centre. The SPF report number should be included in the dispute letter and shared with the bank, as it assists the bank's fraud investigation team and may be required for insurance claims.

The Consumer Protection (Fair Trading) Act (Cap. 52A) provides additional consumer remedies where a merchant has engaged in unfair trade practices — false claims, misleading price comparisons, or bait-and-switch tactics. The Consumers Association of Singapore (CASE) can assist consumers with dispute resolution before or alongside the chargeback process, and CASE's mediation records may support the cardholder's chargeback claim.

A Singapore Credit Card Dispute Letter is needed whenever a cardholder identifies a charge on their credit card statement that they did not authorise, did not receive value for, or that was incorrectly calculated, and wishes to formally invoke the chargeback process.

Unauthorised transactions are the most urgent category — charges appearing on a statement that the cardholder did not make and did not authorise, resulting from card skimming, phishing attacks, SIM swap fraud, or physical card theft. Under MAS Notice 635, unauthorised transactions where the cardholder took reasonable precautions must be disputed in writing without delay. A written dispute letter creates a formal record of the notification date, which is critical for establishing compliance with the card network's dispute time limits (120 days from the transaction date for Visa and Mastercard).

Non-delivery of goods or services requires a dispute letter when a merchant has charged the card but failed to deliver the promised goods or services — for example, a Singapore e-commerce seller who went out of business after taking payment, an overseas online retailer whose shipment was lost, or a contractor who was prepaid but abandoned the job. The dispute letter should document the order details, expected delivery date, and all attempts to resolve the matter with the merchant before escalating to the bank.

Goods not as described disputes arise when the product or service received is materially different from what was advertised — a counterfeit product, a hotel room significantly below the standard represented at booking, or digital content that does not match its description. MAS's Financial Consumer Protection framework and the Consumer Protection (Fair Trading) Act (Cap. 52A) both support the consumer's right to receive what was promised, and the dispute letter should reference the specific misrepresentation.

Duplicate billing or incorrect amount disputes occur when the same transaction appears multiple times, or when the merchant charged a different amount from the agreed price or receipt. These are typically the easiest disputes to resolve but still require a written record.

Cancelled subscription or recurring charge disputes are needed when a merchant continues charging after the consumer has cancelled a subscription or service. The dispute letter should include proof of the cancellation (confirmation email, cancellation number) and identify all charges that occurred after the cancellation date.

A dispute letter is also needed as a prerequisite for filing a complaint with FIDReC. FIDReC requires that the consumer first submit a written complaint to the bank and either receive a final response or wait eight weeks without satisfactory resolution before FIDReC will accept the case.

A Singapore Credit Card Dispute Letter must be structured to satisfy both the bank's internal complaint procedures and the evidentiary requirements of the card network's chargeback process under Visa, Mastercard, or American Express rules.

The cardholder identification section must include the full name of the account holder as it appears on the credit card, the card number (last four digits only — never include the full 16-digit card number in a written letter for security reasons), the expiry date of the card, and the cardholder's NRIC or passport number for identity verification. Contact details (phone number and email address) are required for the bank's dispute team to follow up.

The transaction identification section must specify: the exact date of the disputed transaction as shown on the credit card statement; the merchant name exactly as it appears on the statement; the transaction amount in Singapore dollars (or the original currency if a foreign transaction, with the SGD equivalent); and any transaction reference number or authorisation code visible on the statement.

The dispute category and grounds section must clearly articulate the basis for the dispute by reference to the applicable chargeback reason code category: (1) unauthorised transaction; (2) goods/services not received; (3) goods/services not as described; (4) duplicate billing; (5) incorrect transaction amount; (6) cancelled recurring transaction; or (7) credit not processed by merchant. The cardholder must state the specific facts giving rise to each ground, including dates, amounts, and the sequence of events.

The prior contact with merchant section documents all attempts made to resolve the matter directly with the merchant before approaching the bank. Card network rules require that for most dispute categories (except unauthorised transactions), the cardholder must first attempt to resolve the issue with the merchant. The letter should state the dates of contact with the merchant, the channel used (phone, email, in-person), and the outcome of each contact attempt.

The remedy requested section states clearly and unambiguously that the cardholder requests a chargeback of the disputed amount of S$[X.XX] to their credit card account. The specific amount must match the supporting documents.

The supporting documents list should enumerate each attachment: bank statement extract showing the disputed transaction, order confirmation or receipt, merchant communications, product photographs (for goods not as described), proof of cancellation (for cancelled subscriptions), police report number (for fraud cases), and any other relevant evidence. Under Visa and Mastercard dispute rules, the quality and completeness of supporting documentation is the primary determinant of chargeback success.

The MAS Notice 635 reference and police report section, applicable to fraud and unauthorised transaction disputes, should state whether a police report has been filed with the Singapore Police Force (SPF) and provide the police report number. For losses above S$1,000 resulting from unauthorised card use, filing an SPF report strengthens the bank's fraud investigation and may be required for insurance recovery claims.

The escalation notice should state that if the bank does not resolve the dispute within the timeframe required by MAS's financial consumer protection guidelines (typically 14–21 business days for uncomplicated disputes), the cardholder intends to escalate the matter to FIDReC in accordance with FIDReC's Terms of Reference.

The forms-legal.com Credit Card Dispute Letter template organises these sections in a sequence that follows MAS and card network procedural requirements, enabling cardholders to prepare a well-structured dispute letter for submission to their Singapore bank. Under Singapore law, the Consumer Protection (Fair Trading) Act (Cap. 52A) and the applicable card network chargeback rules govern the core requirements for this type of document. Under Singapore law, Section 4 of the Stamp Duties Act (Cap. 312) and Section 8 of the Employment Act 1968 (Cap. 91) govern the core requirements for this type of document.