Legal basis: Article 53 of the Measures for the Administration of Bank Card Business: (1) Cardholders enjoy all the services promised by the issuing bank to their bank cards, and have the right to supervise the service quality and complain about the service quality that does not meet the requirements. (2) Applicants and cardholders have the right to know the functions, usage, charging items, charging standards, applicable interest rates and related calculation formulas of the bank cards they choose. (3) The cardholder has the right to request the statement from the issuing bank within the specified time, and has the right to request to inquire or correct the inconsistent account contents. (4) After the procedures for reporting the loss of a debit card are completed, the cardholder will no longer be responsible for the changes in the funds in the corresponding account in the card, unless otherwise decided by the judicial organ or the arbitration organ. (5) The cardholder has the right to claim the credit card contract and keep it properly.