Binding failure may be:

① WeChat does not support this credit card binding.

② It must be my real name information, that is, my name and ID number; Bank cards need to reserve a mobile phone number in the bank, and it is consistent with the mobile phone number bound by WeChat. A micro-signal can only bind one real-name information, and can bind up to 1 bank cards. CreditCard

Credit card is a non-cash transaction payment method, and it is a micro-credit payment tool provided by banks to users. The earliest credit card appeared at the end of 19th century. Credit cards are divided into credit cards and quasi-credit cards, which provide settlement services, facilitate shopping and consumption, and enhance security; Simplify collection procedures and save social labor; Promote commodity sales and stimulate social demand. Credit card is a special card issued by banks or other financial institutions to those with good credit standing, which is used for shopping and spending in designated businesses or depositing and withdrawing cash in designated banking institutions. It is a special credit certificate. Main features

① Credit card is one of the fastest-growing financial services today, and it is an electronic currency that can replace traditional cash circulation in a certain range.

② Credit cards have both payment and credit functions. Cardholders can use it to buy goods or enjoy services, and they can also obtain certain loans from card issuers by using credit cards.

③ Credit card is a high-tech product integrating financial business and computer technology.

④ Credit cards can reduce the use of cash.

⑤ Credit card can provide settlement service, which is convenient for shopping and consumption and enhances the sense of security.

⑥ Credit cards can simplify the collection procedures and save social labor.

⑦ Credit cards can promote commodity sales and stimulate social demand.