Call the credit card service hotline of CITIC Bank with my reserved mobile phone number and activate it according to the voice prompt; You can also log in to the personal online banking of CITIC Bank for activation. First of all, with my second bank card and valid ID card, I can bind the second bank card to the business hall of my bank, and then I can use the second card to trade on the credit card APP. First of all, with my second bank card and valid ID card, I can bind the second bank card to the business hall of my bank, and then I can use the second card to trade on the credit card APP.