First: In this case, she used your ID card to apply for a credit card. And with your information (including your mobile phone, a copy of your ID card, and the company phone number), the bank will generally send a message and call the applicant himself.

Second: the secondary card is a kind of card under the credit card, and the consumption of the secondary card is returned by the main cardholder. Mainly between relatives and spouses, generally speaking, for credit cards and supplementary cards, the bank only needs to contact the main cardholder (that is, you can get two cards if your information passes, so it is estimated that you are the main cardholder and your sister is the supplementary card).

Third: The solution is to call the bank's customer service and switch to manual work, saying that you want to cancel this credit card application. Or you can just say that you don't want to handle it when you get a phone call from the bank to check the information with you.

Fourth: Credit cards are actually not as terrible as imagined. Generally speaking, credit cards that repay on time every month can not only enjoy many benefits, such as shopping, watching movies, but also spending points to exchange gifts. You can cancel this card in case it is really processed. But if you really don't want it, you can call decisively to cancel the application. Generally, it will be approved in about 3 to 5 days after the bank sends a message.

You can keep asking questions. Thank you.