Poor customer service

Hi My name is Michelle and I am very disappointed with the Rain company. I started using Rain wifi since last year and I havnt had any problem until they introduced the new router and the amount that we where paying went up. So i called them and requested a new router but the payment plan still stays the same no one ever told me that i will be charged for the new router. When they delivered the router I was told that I must call so that the old one can be cancelled and so I can only pay for one and not two, I did that and to my surprise month end I get an amount of R708 which I payed but then my statement shows that there are other two different amounts of which I do not know what are they for still no one could explain to me since i have been requesting them to call me back and explain. it's been two month already without wifi and yet I have paid. so I am confused as to how Rain has been treating me lately the amount of R1190 has been bouncing back and it's been messing up with my credit score.