What's wrong with calling the prepaid phone without SMS prompt, but the phone is still down?

Your phone bill exceeds the amount you paid. Even if the recharge is successful, you still owe money, you can't receive the SMS, and you can't use it normally. The verification method is to call the operator's mobile phone 10086 Unicom100/0 Telecom 10000 to check the balance and recharge records. You can also log in to the online business hall to check the recharge record.

It is possible that the system is delayed. Generally, the process of recharging after shutdown takes about 5- 10 minutes. With bad luck, it may be delayed for several hours. This also needs you to check and confirm.

I hope it helps you.