12320 failed to receive the verification code.

Unable to receive the verification code of 12320 may be caused by the following reasons:

1. The mobile phone has been used for too long, and the system is stuck, resulting in the timeout of the verification code message.

2. There is a time limit for mobile phones to receive verification codes. If the surrounding signal is not good, the verification code will not be received after the receiving time.

3. Busy business of SMS center will delay SMS verification code. Once this delay exceeds the receiving time limit of the verification code, it will not be received.

4. If the mobile phone is in arrears, you can't get the verification code.

If you encounter this problem, please check whether the mobile phone is in arrears. If the phone is not in arrears, you can try to restart the phone or change the phone number. If you still can't receive the verification code, please contact 12320 customer service for help.