First of all, overdue repayment will lead to the accumulation of interest. When you fail to repay your credit card debt on time, the bank will charge interest on the outstanding amount at the agreed interest rate. This means that the unpaid principal will continue to generate interest, and with the passage of time, the accumulation of interest will lead to the increase of the bill amount.

Secondly, overdue repayment may lead to the collection of late fees. Credit card bills usually indicate the latest repayment date, and once the repayment is overdue, the bank will charge a late fee. The amount of late fees is usually calculated according to the number of days overdue. The longer the overdue period, the higher the cost of late payment. Therefore, overdue repayment will lead to extra late fees on the bill.

In addition, overdue repayment may lead to the freezing of credit line. When the credit card expires, the bank may freeze your credit line in order to protect its own rights and interests. This means that the credit card cannot be used again during the overdue period, and the new consumption accounting will be added to the overdue bill, further increasing the bill amount.

To sum up, overdue repayment of credit cards will lead to more and more bills, mainly the accumulation of interest, the collection of late fees and the freezing of credit lines. In order to avoid increasing bills, it is recommended to repay the credit card arrears in time, abide by the repayment agreement, and try to avoid overdue credit cards.

Supplementary information: If the credit card is overdue, the bank may take other measures, such as calling you for collection, sending overdue notice and recording the overdue in the credit report. All these will have a negative impact on personal credit records, which may affect the approval results of applying for loans and credit cards in the future.

In addition, if you can't repay all the arrears within the time limit, it is recommended to communicate with the bank in time and apply for installment repayment or deferred repayment. After evaluating your repayment ability and credit status, the bank may give you a certain grace period or an opportunity to repay by installments to reduce the losses caused by overdue.

In short, the reasons for the increase in bills caused by overdue repayment of credit cards are the accumulation of interest, the collection of late fees and the freezing of credit lines. To avoid increasing the bill, we must repay it in time and abide by the repayment agreement. When encountering difficulties, you can negotiate with the bank to apply for installment repayment or deferred repayment, and actively solve the overdue problem. Maintaining a good repayment record helps to maintain personal credit and financial health.