Incorrect account billing and connections/Services

I have joined a subscription services at Multichoice for a special of R799 per month, this is a explora package. I was not sure when the debit order will go off so I decided to go and pay cash at a SPAR store on the sixth of April 2015 on the 7th the account was activated and they deducted a further R799 from my account. I called them to rectify this and they advised me that the account would now be in a credit therefor I agreed. We then activated all the services on the explora package only to find that we were being charged per item and not the package price of R799. They then re-amended our account and it was all back to the R799 amount. We then installed new cables and the correct fittings to our house for the extraview that we were told would be free of charge as it was in the monthly service fee. This was not true and we are being charged extra for that too that they also said they would rectify. Therefor our billing keeps being incorrect. Our extraview also only works when we phone in and they reconnect it, it then only works for a day or two. This is causing us high phone bills and wasted time. Today on the 19 of May the Extraview is yet again not working.We are unsatisfied