Dstv bad service

Well Dstv whAt can I say, I am a premium subscriber and have been for more than 3 years, I have in the last year not had any box office because when I rent I get a msg back saying i am not a premium subscriber so I phone and ask what's wrong and I was told it's my cables and must get an installer which I kept doing with no luck as my cables are just fine and signal is strong, so i keep phoning and with no luck phone call after phone call 100ds of rands on airtime and paying for a service I don't receive I get more and more fraustrated. I have now after a year rented my 1st movie because one person working for Dstv used his head to thing further than his pay check and go and look why instead of telling me they don't know why, my box office was deactivated and never re activated so I have been paying for a service that I have not recieved for a year, to top it all off I had a Dstv manager in the Randburg branch tell me they do what's best for the company and threatening me by saying Dstv can and will stop any services offered at any time when they feel like it. Dstv staff never call you back when they say they will,some consultants say they can't calm you back and others say they can