Call the official customer service number of the bank. You can also call the official customer service number of the bank. For example, CCB's 24-hour service hotline number is 95533, which can also be found according to voice prompts.

The bank where the bank opens an account refers to the bank outlet where the customer handles the account opening procedures.

Generally speaking, it is the bank where the customer first handles the passbook or bank card, usually referring to the branch.

Generally speaking, customers can call the customer service phone number of the business bank, or go to any business outlet of the business bank to inquire about the bank where their bank card or passbook is opened.