Now I have an ICBC card, so I can't open online banking and SMS service because there was an ICBC card that opened online banking before.

please cancel the previous card first.

if you have multiple ICBC cards in use, you can use one of the commonly used cards as the main card and the other cards as the auxiliary cards. The auxiliary cards need to be linked to the main card. When you log in to your account, your online banking account will display the information of these cards, and it is very convenient to transfer money between the main card and the auxiliary card.