1. Account balance and available account balance:

(1) China Postal Savings Card account balance: the actual deposit balance up to now;

(2) Available balance of China Postal Savings Card: available amount, including deposits and credit lines, excluding used amount.

Second, if the account balance on the debit card is different from the available balance, it means that there is unfinished business. When purchasing wealth management products, the money will only be taken out at the end of the period, and the funds will only be frozen during the fundraising period.

Third, there are cases of judicial freezing and partial balance freezing. Available balance is the actual balance of the account minus the frozen balance.

Supplement: If the bank fails to record in time, it may show that the balance on the bank card is inconsistent with the available balance.