You can't. Postal credit cards cannot be cancelled online. Make sure there is no overpayment in the card before cancellation.

You can cancel the postal credit card in the following ways:

1, calling card cancellation. First, before canceling the credit card, make sure that the account has no arrears and no balance, and then call the credit card customer service of Postal Savings Bank to switch to manual service, and directly apply to the manual customer service for cancellation of the credit card.

2. Cancel the card at the outlet. I took my ID card and credit card to the Postal Savings Bank to cancel my card. I need to fill out an application for account cancellation, and I will call to confirm it in a few days.

3. Going to the bank counter to cancel, just like going to the outlet to cancel the card, you need to bring the necessary documents, such as ID card and credit card. If the credit card is in arrears, you need to bring cash at the same time.

Postal savings bank credit card application conditions:

Principal card applicant: Chinese mainland residents aged 18 and under 60 years old. Supplementary card applicant: 16 years old. Chinese mainland residents under the age of 60.

Postal credit card balance inquiry method:

1, WeChat query

Pay attention to the official WeChat of Postal Savings Bank through WeChat official account, and then select a debit card for binding. If it has been opened before, you can verify the login through mobile banking. If it is not opened, you can register according to the page prompts, and then you can check the account balance in real time through WeChat.

2.ATM machine query

See if there are China Postal Savings Bank Card ATMs or other bank ATMs nearby. Insert the postal savings bank card and enter the password to check the balance of the postal savings bank.