Hello, I used to be a credit card salesman. In that case, I can tell you when to come to your home to fill in the information for you. If the time is less than 3 days, you can directly call the salesman who helped you fill in the information and say that you don't have to do it, and he won't help you hand in the information. Just tell him to destroy it, that is, in three days, you can call to cancel it when your card comes down. There is no charge for canceling the credit card. You can call the customer service phone of China Merchants Bank Credit Card. 80082095508.