Confirm the identity of the person with the bank. If the bank confirms that the person is not their staff, call the police immediately. If that person is their employee, it is not a representative, because internal employees can also use customer information to commit crimes. They should check the changes of their accounts in time, consult the bank about the process of handling credit cards, see if this person's behavior is normal, and report the situation to the bank customer service immediately if there is any abnormality.