First of all, you can check the details of your bank card and confirm the time and amount of deduction, so as to verify the reason and basis of deduction.
Secondly, you can contact the customer service of China Construction Bank and call 95533 or online consultation 1 to explain your situation and provide relevant evidence, and ask the bank to handle and refund your money as soon as possible.
Third, if you suspect that your account has been stolen or cheated, you can report it to the local public security organ in time and ask the police to intervene in the investigation and investigate the responsibility.
Fourth, if you are dissatisfied with the bank's handling results, or encounter other problems, you can complain or report to the CBRC or the People's Bank of China to safeguard your legitimate rights and interests.