1. There is an expiration date on the front of the credit card 16-digit card number. The format is MM/YY, for example, 09/ 18, indicating that the deadline is September 20 18. Call the bank's customer service hotline and follow the prompts to enter information such as ID number, credit card number and 4-digit expiration date to activate. Credit cards are also called credit cards. This is a non-cash transaction payment method and a simple credit service.

1. Credit card, also known as credit card, is a credit certificate issued by commercial banks or credit card companies to qualified consumers. The form is a card with issuer's name, expiration date, number and cardholder's name printed on the front and magnetic stripe and signature strip printed on the back. Consumers with credit cards can go to specialized commercial service departments for shopping or spending, banks settle accounts with merchants and cardholders, and cardholders can overdraw within the prescribed limits.

2. Credit card consumption is a non-cash transaction payment method. There is no need to pay cash during the consumption period, and repayment will be made on the account date. Credit cards are divided into credit cards and quasi-credit cards. Credit card refers to a credit card in which the cardholder has a certain credit limit and can spend first and then repay; Quasi-credit card means that the cardholder deposits a certain amount of reserve fund as required. When the balance of the reserve account is insufficient to pay, the quasi-credit card can be overdrawn within the prescribed credit limit. The credit card usually only refers to the credit card.

3. The earliest credit card appeared at the end of 19. From 65438 to 1980s, the so-called credit card was developed in British clothing industry, followed by tourism and business departments. However, at that time, credit cards could only be used for short-term commercial credit loans, and they still needed to be repaid when used. They could not be in arrears for a long time, and there was no credit line. Credit card is usually a special plastic card with a length of 85.60mm, a width of 53.98mm and a thickness of1mm. The name, expiration date, serial number and cardholder's name of the card issuer are printed on the front, and the chip, magnetic stripe and signature strip are printed on the back. Cardholders can use credit cards to shop, shop and deposit in banks.