Your bank card has opened online banking or registered online shopping website.
Your mobile phone number used to belong to someone else, and his bank card has not been changed.
4. Someone sends you a text message saying that you spent money, and then pretends to be a policeman to cheat you.
Go to the bank teller machine first to see if there is any money. If there is any abnormal transaction record, call the bank staff to call the police.
If there is no abnormal record, you must want to cheat.