One day's late repayment of Bank of Communications credit card is not overdue. At present, Bank of Communications has a three-day grace period for credit card repayment, that is, users only need to pay off their credit cards within three days after the repayment date. At the same time, credit cards have a minimum repayment amount, so users can choose to pay off the minimum repayment amount when repayment is difficult, but the remaining funds to be repaid will be accumulated into next month's bill at the interest of five ten thousandths per day.