Poor service

I woke up on Thursday and my phone had no network, I called mtn and I was told that my number have been deactivated because I haven't loaded air time for a long time and I was told they will reactivate it but still the number wasn't working. I called them 3 times and I was told the same thing that the number is active I must switch off my phone for an hour and I kept doing that but still my number was not working and I was also advice to get a new sim card and do a sim swap and I did that. Today is the 4th day my number is not working. I called again and I spoke to a guy called Siyabonga and he told me that the number was deactivated again and there was no sim swap done. I'm so furious and I want my number back