Make sure you don't launder money yourself, so don't worry, just call the police.

Make sure that the phone number of your incoming call is the official number of the bank to which the credit card belongs. If not, it is probably a fraudulent phone call.

The process of this kind of fraud is to say that your credit card is suspected of black money or something, and then let you remit money to his designated account, and then there is an artificial desk to connect with some police officer from the Public Security Bureau. Just ignore it.