Credit card penalty is due to the cardholder not repaying the credit card bill on time, causing the credit card to be overdue, so overdue penalty is incurred. At this time, the cardholder should pay off the outstanding bill in a timely manner and actively contact the bank to explain that the overdue payment is not malicious, otherwise it will affect the personal credit report. The default penalty for a credit card is generally 5% of the unpaid portion of the minimum repayment amount, and the charge is a one-time charge. For example, a cardholder has an overdraft of 10,000 yuan with a credit card and must repay a minimum of 1,000 yuan on the repayment date. The cardholder will only repay 300 yuan when it is due. The unpaid 700 yuan will be charged a penalty of 35 yuan based on 5. .