After receiving the card, you can use it after opening it according to the normal procedure. The usage method is as follows: 1. Credit card consumption in major shopping malls, supermarkets and hotels. All you have to do is show your card, swipe your card and sign it, and keep it for signing. In case of emergency, you can withdraw cash from ATM according to your own quota. If you want to charge interest every day from the date of withdrawal, remember to pay it back. 3. Your birthday is the billing date of the credit card every month, and your repayment date is within 15 days after the billing date. If you fail to repay the overdue payment, you will be charged a late fee. See you in court.