Simply being cheated, you don't have to pay for opening a credit card, even if you come to the door, but if you succeed, the salesman will get the corresponding commission. It's all a lie, like charging or how much it costs to come to the door. I suggest you join a nearby group and find those people to help you deal with it. Some of those groups come to 300 yuan for free, and some have to pay 200 yuan. Just find someone who is free to handle it for you. I'll handle it.