First of all, no matter who the other party is, whether it is your teacher or your parents, you must get your consent before you can apply for a credit card with your ID card. If he forces you to apply for a card and help others complete other people's work tasks, it is bound that your teacher will benefit from the bank staff after completing the task (not excluding their close relationship), but any benefits you get will not fall on you. On the contrary, you will bear direct responsibility, such as losing your card.
The better situation is that he applied for a credit card, even if it was not opened and then directly cancelled, it is no problem.
How to tell: Did you get a call from the credit card department of the bank? If not, it is not finished. It won't affect your credit information, but your ID card information has been leaked to the bank. In this way, there is no problem of canceling the card.
However, in any case, in order to complete the task, it is wrong for the trust to run a credit card. (But this situation is very common now). What makes me angry is that your teacher is irresponsible and you are impolite when asking for help. He even said he didn't know what to do with it later. . A little bit. .