When applying for a credit card on the bank website, if you are required to fill in an email address, you only need to enter any email address you already have. As long as you pay attention to the correct format, it should be in the form of user name @ domain name, for example, the user name of qq email address @ qq.com.

The user name in front should be your number, or English, mobile phone number and account number, which cannot be expressed as a website. Separated by the English @ symbol. Note that there can be no redundant symbols before and after the @ symbol, followed by the domain name, and the dot in the middle of the domain name is also an English symbol, which is written below.

When registering users with email, we must pay attention to the format of email address, which must be a common email and a valid email.