Brother, I have also applied for a credit card on WeChat, and it has been more than a year now. And I found that there are people around me who specialize in this. This is a way to promote credit cards. They get commissions for applying for cards, and they specialize in applying for credit cards. Sending friends in groups allows you to promote them for free. After all, your publicity effect is much more credible than his. Secondly, they can also make secondary use of your information and sell it to relevant personnel and institutions to obtain profits. I applied for a card on WeChat once and the limit was very low, but I didn’t dare to use it and canceled it later. There should be no big impact. At most, your information has been deceived, but even if he gets your card, he can't spend money. However, it is best not to apply for a credit card in chat software such as WeChat QQ. It must be done on the official bank official website or official app. If possible, go directly to the bank counter.