Attached is some basic knowledge about the use of credit cards: Overdraft interest is 0.5% of the daily interest rate, and the interest is compounded monthly. If you use the card to make purchases, you can enjoy interest-free if you repay the full amount before the due payment date. , that is, there is no interest. If you only pay the minimum repayment amount, you will not get this treatment. The interest will be charged from the next day of consumption. If you withdraw cash, the interest will be charged regardless of whether it is repaid in full before the due payment date. It is unavoidable and will be charged at 0.5% from the day. If it is overdue, there will be a late fee, which is a one-time charge of 5% of the unpaid minimum repayment amount.