The new mobile phone number received a credit card dunning from Bank of Communications, but I didn't do it.

Generally, this kind of situation should be ignored. The reasons are as follows: first, whether you apply for a card or not, first determine whether you have registered a credit card with this mobile phone; Second, the current phone number was released two months after this person stopped using it, so it is likely that the credit card registered by the owner with this number has not been cancelled; Third, is it false information, that is, fraudulent information?