The Measures for the Administration of Bank Cards have corresponding provisions on this:
Thirty-ninth electronic information generated by various transactions such as deposit and withdrawal, transfer and settlement. , handled by the issuing bank according to electronic information such as passwords, which are valid vouchers for this transaction.
The issuing bank can use the transaction details or list as accounting vouchers. The original vouchers of all kinds of bank card networking transactions shall be kept for at least two years for future reference.
Extended data:
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Relevant laws and regulations of the Measures for the Administration of Bank Cards:
Article 61 The issuing bank shall clearly stipulate in the credit card collection contract (agreement) the specific operation process of repaying credit card loans with the relevant assets of the cardholder, and shall not directly offset the credit card receivables with the assets of the cardholder without the authorization of the cardholder.
The issuing bank shall provide the cardholder with the loss reporting service of the bank card, and set up a 24-hour loss reporting service telephone, providing both telephone and written loss reporting methods. Written loss reporting is a formal way to report the loss.
Article 62 Card-issuing banks shall provide complaint handling services, establish a unified and efficient complaint handling process according to the characteristics and complexity of credit card products (services), clarify the administrative departments for complaint handling, and make public the complaint handling channels.
Baidu Encyclopedia-Bank Card Management Measures