When a Postal Savings Bank of China credit card is locked after entering the wrong password three times, you need to take the following steps to unlock it:

First, make sure you bring the same valid identity as when you opened the account. Documents, such as second-generation ID cards, and corresponding postal credit cards or passbooks. Then, go to any Postal Savings Bank branch where you opened an account and go through the password loss reporting procedures. After reporting the loss, please wait for 7 days. During this period, please keep relevant documents for subsequent reset.

After arriving at the bank, go directly to the counter or wait in line to be called. Bring your ID card and bank card. You may need to fill in a password change application form. When your number is called, submit the application form and required materials to the staff, enter the new password as instructed and sign after confirming it is correct.

It is important to ensure that your identity verification process is accurate and follows the "three unifications" standard, that is, using your ID card and bank card, and choosing the correct bank branch. During the application process, please pay attention to the password setting rules, which are usually six digits and need to be confirmed three times to ensure security. If the password is entered incorrectly more than three times, you will need to wait 24 hours for three more input opportunities.

In short, once the password is locked, you only need to go to the bank in accordance with the prescribed procedures and requirements, and handle it patiently, and you can successfully reset the password and resume normal use. Remember to avoid password lock due to frequent incorrect input and ensure password security.