The verification code of Chongqing senior high school students' comprehensive quality evaluation system cannot be issued.

The network is busy, you can send the verification code later.

It may be that there are too many end users of students' comprehensive quality evaluation, and there is something wrong with the login system, which leads to the wrong prompt. I suggest you try again later.

1. Maybe the mobile phone network is bad or the signal is poor. Observe whether the cell phone signal is full. If the cell phone signal is weak, go to an open place and see if you can receive the message.

2. It may be intercepted by the mobile phone system, find a blacklist in the SMS or check the intercepted information.

3. It may be that the mobile phone is in arrears and can't receive the message. Check whether the mobile phone is in arrears and recharge the arrears in time.