Accept the clauses in the contract documents that clarify the rights and responsibilities of both parties. Bank of Guangzhou is a joint-stock commercial bank controlled by Guangzhou Municipal Government, and the authorization of credit card collection contract is to accept the provisions of contract documents defining the rights and responsibilities of both parties. Credit card, also called debit card, is a credit certificate issued by a commercial bank or credit card company to eligible consumers. It is a card with the name of the issuing bank, expiration date, number and cardholder's name printed on the front, and a magnetic stripe and signature strip on the back. Consumers with credit cards can go to the specialized commercial service department for shopping or spending, and then the bank will settle accounts with merchants and cardholders, and cardholders can overdraw within the prescribed limit.