Why didn't Tianjin Medical Insurance receive the verification code?

Tianjin Medical Insurance can't receive the verification code: the SMS function is abnormal, the network is delayed, and the mobile phone number is incorrect. In this case, you can call the operator to see if the SMS function is normal. The short message function is normal, but the medical insurance verification code is still not received, which is caused by network delay. Check whether the mobile phone number is correct.