After that, swipe your card. Even if you use up all the money you paid before, the money you paid before is still a repayment.

Repayment and credit card swiping are two completely independent operations, which just means that after you repay, the amount will be restored to a certain amount (equal to the amount you repay). After that, your credit card is a new consumption.

You can enjoy the longest interest-free period if you swipe your card on the same day or the next day. If you swipe your card before the card processing day and include it in the current bill, the interest-free period will not be so long.