Take the credit card of China Merchants Bank as an example. You can check the card number of the credit card through the following channels for your reference:

① If your one-card card and credit card have signed a self-service transfer agreement, please log in to mobile banking and click Home-Click Transfer-Transfer Management-Personal Account Transfer. If the card has signed a personal transfer agreement with the credit card, you can see the card number of the credit card.

2 If you recall whether you have bound a credit card through a third-party channel, you can try to query through the binding platform;

③ I tried to inquire through the local counter;

(4) If your family has paid the money for you, you can confirm whether the transfer-out online banking is recorded or can be found;

⑤ If you can't find the card, you are advised to call the credit card customer service number 4008205555-2# to report the loss and reissue it, which will require 60 yuan fees.