10 7 Want to buy a car but can't get the SMS verification code? What happened?

I don't think it's the card, because when registering, the first step is to enter the mobile phone number and user name, and then go to the next step, which has nothing to do with what card it is, and it has nothing to do with it at all. Unless it is at the stage of entering the card number and password, it is related to what card to use.

I asked my friend for help. I changed the phone number column to my friend's, but he couldn't get it. It's not the phone. I've tried to keep my phone running. Then I asked my classmates to help me register, but I couldn't get the verification code, so it wasn't a computer problem.

Then there is only a network problem. Moreover, I have read a lot on the Internet and have some questions. They all applied at another time, and some of them received the verification code after a long time, so they registered at another time.