What's wrong with charging the phone bill without SMS prompt?

The phone bill was recharged successfully without SMS reminder. Reason 1: Recharge failed.

If there is no SMS reminder when the phone bill is recharged successfully, one is caused by the phone bill recharging failure. Maybe your side shows that the phone bill recharge is successful, but overall, the phone bill recharge is a failure, so there will be no SMS reminder. This situation can be solved by the operator.

The phone bill was recharged successfully without SMS reminder. Reason 2: SMS missed.

Secondly, it is a case of short message leakage. This kind of problem exists, that is, your recharge is successful and the system does not detect it. Therefore, there will be a case of SMS leakage, and there will be no SMS to remind everyone that the recharge is successful. This situation does not affect this.

The phone bill was recharged successfully without SMS reminder. Reason three: delayed arrival.

Another reason is that there is no SMS reminder, that is, the phone bill is delayed after being recharged. This happens from time to time, especially at the beginning and end of the month, when the phone bill is recharged, it is easy to be delayed, so everyone can see that it is actually successful, but it has not actually arrived.