This is absolutely the worst service I have received from MTN. I will never again use MTN after this contract expire

In May 2021 I went to my MTN store because something was wrong on my contract(I got a new contract in February 201) when the data and minutes on my contract was done, and I put new data on and bought minutes it did not want to use that, new data/minutes that I brought. The store could not help me. I phoned the call centre at the end of May because it was still a problem and someone helped me and changed my setting so that the data that I put on additionally on can be used. Since the person from the call centre did this, my phone does not have any signal. I can make and receive phone calls, but I can't send a sms, receive one. I cant use any of the apps on my phone for it all says Waiting for network connection. It is as if my mobile data is off, my phone shows the bars for the signal but there is no 3G or LTE displayed on my phone. I have put my sim card in other phones, but the problem still persists. I did a sim swap, still the same problem. There is mobile data on my phone, so it is not that there is none. I have been phoning the call centre since the end of May 2021 without anyone being able to help me, they have logged ticket upon tickets and it is September 2021 and I still have this problem. I have contacted the tower/coverage people and there is nothing wrong on their side. My husband is a MTN client and when I stand next to him he has LTE but I have nothing.

I'm very frustrated with this problem, for this has now been four months and no one is able to help me. If this problem does not get solved, I will not be able to pay my MTN contract, for what is the use when I can't use my phone for what I'm paying for.

This is absolutely the worst service I have received from MTN.