Terrible customer service

I wouldn't put even one star if I could. I didn't pay my August fee on time so my wifi was switched off. I then called to find out what my fee would look like for September since it had been off then on for a day or so then off again and the lady said no they don't switch it off they just interrupt it for a day to remind me to pay and I told her that I had been experiencing the opposite so she said I would be billed for what I used so we must just wait for the end of September. It was the end of September and I received a bill for the full amount so I called to find out why and the other lady said i would be credited and would pay a lower amount then I asked about the days it says it was on and she said she would talk to finance. Now it has been days with no feedback and my bill is still the full amount I call only to be told that no I won't be credited as they only credit if the issue was due to network or something but I am asking why should I pay for something I didn't use? If my wifi was on then I would know very well that I need to pay the full amount no matter what why did 2 people say I would get credited yet the one says I don't qualify? What type of service is that or a business where everyone says something different? I stayed at work till late to work and sometimes had to buy data yet now I must pay Rain. No that is daylight ******* and when I said I might as well not use it anymore because I need to work she responded I need to pay and then cancel so that they don't continue billing me, imagine. Plus I know they will because someone left the country for a few months and when they thought they would use rain the bill was +- R3000 yet they say they work on a month-to-month basis.