How can there be a card number if you haven't received the card? Is this a card already?

Yes, that means your credit card application has been approved, the card number has been generated and the card has been made.

Next you just need to wait for the courier to deliver the card to you.

After receiving the card, you need to activate it yourself. After activation, the credit card can be used normally. At the same time, a paper document will be attached to the registered letter of the credit card, which records in detail the information such as "billing date", "credit limit" and "last repayment date" of your credit card.

In addition, according to your information, your credit card is bound with the automatic repayment function of debit card, so before the final repayment date, you should ensure that there is enough repayment amount in the bound debit card.

I don't understand.