Rain is ***... ****... and does not give a **** never mind how much you plead for assistance but they only give a **** about taking your money

I have been complaining about the same thing over and over but still no response or help... My rain sim card is not working for the past weeks I was told to do a sim swap which I did but still it's not working. When I leave my yard it works but the moment I step inside the signal bars go down. I fail to understand what's the problem because it was working all along, rain debited but when we want assistance it falls on deaf ears. Can someone please help this is becoming ridiculous... I advise rain that it's not like the sim is not working but they insisted on me doing a sim swop as they dont listen to their clients as in repeat and say that the the sim card works outside my yard but when I'm inside the yard it does not work but it was working fine for the past 5 months but since may everything was fine... their nearest tower is 0.28km away from me and I literally see it from angles in my yard the second one is 0.78km, the third one is 0.88km the fourth one is 0.89km, the fifth one is 0.93km away.... I've tried the sim in all devices... configured the APN's and reconfigured it .. resented my devices... manual network selection... optimised on the app... tried moving my devices around( funny it was working fine)... the point is I've telling them same thing and I could not connect close to two weeks now they debited and no one gives a **** about resolving my issue