you can complain and report to China Banking and Insurance Regulatory Commission, China.

you can report to the local industrial and commercial department, go directly to the discipline inspection and supervision office of the industrial and commercial bureau to make a complaint, and go to the official website of the local industrial and commercial bureau to check the complaint telephone number. If the industrial and commercial department passively enforces the law, you can also file an administrative reconsideration.

Credit card departments of major banks have complaint telephone numbers, which can be dialed directly.