What is a 'Credit Card Chargeback' dispute mechanism?

[ A ]A formal consumer protection process where the card-issuing bank reverses a fraudulent, unauthorized, or non-delivered merchant transaction after formal customer dispute investigation.[ CORRECT ]

[ B ]A mandatory 50% cash tip paid to retail restaurant waiters.

[ C ]A process of converting credit card debt into sovereign gold bonds.

[ D ]A penalty fee charged by banks for paying credit card bills on time.

Takeaway

A credit card chargeback is a formal consumer-protection process by which the card-issuing bank reverses a fraudulent, unauthorized, or non-delivered merchant transaction after investigating the cardholder's formal dispute.

Derivation

Chargebacks exist because cardholders bear the risk of merchant fraud, billing errors, or non-delivery of purchased goods/services, and card network rules (Visa/Mastercard/RuPay) give issuing banks a structured process to investigate the dispute and, if the merchant cannot justify the charge, reverse the transaction and credit the cardholder back. This is distinct from a simple refund initiated by the merchant — a chargeback is investigator-driven and can be pursued even against an uncooperative or defunct merchant, which is the practical consumer-protection value the exam wants candidates to recognize as part of debt/credit product literacy.

Why the others fail

B — A mandatory 50% cash tip paid to retail restaurant waiters.

A gratuity or tip paid to service staff is a voluntary payment custom unrelated to any dispute-resolution mechanism between a cardholder and the card-issuing bank.

C — A process of converting credit card debt into sovereign gold bonds.

Sovereign Gold Bonds are a separate government debt instrument; there is no regulatory or product mechanism that converts outstanding credit card debt into gold bonds.

D — A penalty fee charged by banks for paying credit card bills on time.

Timely bill payment carries no penalty under standard credit card terms — penalties apply to late or missed payments, not to paying on schedule.