Credit card activation is free, and the applicant can call the service number of the issuing bank with the completed mobile phone and open the card according to the voice broadcast operation; You can also open the card through online channels such as WeChat bank card and mobile online banking, depending on the applicant's preference.
However, to activate a credit card, you need to submit a valid ID number when you apply for the card, and use the reserved mobile phone number to receive the verification code, and you can't just disclose it to others.