First, find out the reason directly from the lending bank and express your attitude. Loans from banks must be handled by the borrower in person with the original ID card and signed on the loan contract. If a copy of another person's ID card or household registration booklet is used to make payment, the person who used it and the lending bank shall bear corresponding legal responsibilities, and the person who was used by the person who used it fraudulently does not need to bear any responsibility.

Second, you can choose to call the police and request the public security department to intervene in the investigation to restore the truth; whether there is any illegal behavior such as collusion between bank staff and others, collaborating with others to defraud loans.

Third, sue in accordance with the law and request legal support.