Does the poster want to ask the bank where the CCB credit card is opened?

If so, the bank where the credit card is opened is generally the same as the province where the owner of the credit card is located. Of course, China Construction Bank in some cities has also set it up as a branch, such as Shanghai, Beijing, Tianjin, Chongqing, Suzhou, Qingdao, Ningbo, Dalian, and Shenzhen (these branches will be listed on the official website of China Construction Bank). If the poster applied for the card in these cities, it is the branch corresponding to these cities.

For example, if the poster is from the Shenzhen area, then the card issued belongs to the Shenzhen branch, not the Guangdong branch.

If the poster does not remember clearly the situation when the card was issued, just I can only call their service hotline to confirm.