In response to your question: 1. If the previous bill is fully repaid, only the cash part is borrowed in advance, and the next day is fully repaid, there will be one day's interest, which needs to be paid.

2. The card issuer shall repay the cardholder in the order of the billed and unbilled, and the billed part shall be repaid one by one according to the order of annual fee, interest, expenses, cash advance or principal of transfer transaction and principal of consumption transaction.