So you must first confirm which bank's credit card your credit card is. Usually, the phone number of the bank will be printed on the credit card.
You can use the following methods to check the account:
1) Call the credit card voice center to check the account balance, and whether there is any arrears;
2) According to the short message number provided by the bank, send a short message to inquire about the fund status of the account;
2) Check the monthly credit card bill mailed by the bank to confirm whether there is any debt in the current period;
3) Go to the bank counter to check whether there is any debt.
Usually, if there is a debt, the bank with better service will call you to repay it. If your bank doesn't inform you, then you must always pay attention to the bank's notice, or the most troublesome way is to collect the documents of each consumption and keep an account.
In any case, in order to pay less interest, it is better to check the bank account regularly (according to the repayment period) and repay it in time. -