I have paid the phone bill. Why did it fall?

If you pay the phone bill and turn it off, that is to say, your number is still in arrears, it may be that the system did not deduct the phone bill for your number in time, or your number balance is not enough to deduct the arrears. Under normal circumstances, if your package is not in arrears, it can be opened normally. If it is still turned off, it means that there is still arrears. I suggest you recharge it first, or you can go to the local Unicom business hall to find out the reason.