The reasons why the POS computer balance shows a negative number are:

1. If there is pre-authorization or installment payment, there will be a negative number.

2. Negative numbers will also be displayed if the balance is not settled.

3. Solution: Log in to the "Pocket Life" client and enter "My - Account Checking*Repayment". The amount required to be repaid on the bill shows a negative number. Please log in to the credit card website and find Account Management - Account Inquiry.