credit card consumption is a non-cash transaction payment method, and it is not necessary to pay cash when spending, and the repayment will be made on the BillingDate. Credit cards are generally special carrier plastic cards with a length of 85.6 mm, a width of 53.98 mm and a thickness of 1 mm, with the name of the card issuer, expiration date, number and cardholder's name printed on the front, and chips, magnetic strips and signature strips on the back. Cardholders can use their credit cards to shop, spend money and deposit and withdraw cash from banks.