If the credit card deposits money first, and then spends it by credit card, there is no need to repay. If the consumption exceeds the deposit amount, a credit card bill is formed, which needs to be repaid before the first repayment date after the credit card bill comes out.

If it is inconvenient to repay, you can go to the bank to bind the credit card and debit card for automatic repayment, so that the credit card bill will be automatically deducted from the debit card on the last repayment date, so you don't have to worry about it yourself.