This should be the credit card of someone who used this number before. Generally, after the mobile phone card is deactivated for three months, the operator will recycle the number and sell it again. To be on the safe side, you can also contact the customer service of ICBC to confirm that it is not my card. At the same time, you can also ask the customer service to contact each other and ask him to change his contact information. Generally speaking, the bank will have an emergency contact number.