worst customer service

I was told that I would be on a month to month contract with rain and that I would only need to pay monthly and when I don't pay I just won't get data HOWEVER that was not the case as I was phoned a few months later when I did not pay and was told my name would be handed over to lawyers if I don't pay so i then did pay and asked for a cancellation and was told it is being sent through,a few months later again I was phoned with the same thing and I then asked but why am I still being billed I asked for a cancellation they said it didn't go through so I then once again paid the outstanding amount and asked for a cancellation and I was assured my subscription has been canceled I received an sms stating I have an outstanding balance every few days so I phoned to get answers I was told my subscription was never canceled so I once again have to pay the outstanding balance and again have to ask for a cancellation and then I was spoken to very badly by the support personnel and when I asked for the manager I was ignored and yelled at with all that said I was also told in the start if I don't want to be billed I need to unplug the router which I have done and have put away in a box I am very unhappy as this is the worst customer service I have ever experienced in my life and I am being billed for something I am not using .I was also told it is my responsibility to make sure that they the Rain company's people give me a cancellation number (i have asked for it from the people I spoke to and never received it and phoned multiple times to get help and no one ever answered the phone)on which I rep**** how is it my job to do something when I have already tried my best and its not my responsibility to call every few days to get something they are being paid for doing.The person who last spoke to me was extremely rude and did not listen to a word I said and got upset when I answered her questions with the same answer because she kept asking the same questions.