Mweb Service

My Account was activated 0n the 8/12/2015 I was billed by them prorate and current month R715.23 but the problem is I have had no internet since my service was activated. I raised my concern with Finance department and they said they will reverse the billing amount but nothing happened and amount was still deducted. On the 29/12/2015 I have decided I have enough of this poor service delivery and want to cancel and I was told if I want to cancel I need to pay the amount of R799 for the router to buy myself out of the contract. Today 04/01/2016 I raised my concern again with them that I should not have been charged due to the fact that I still don't have any internet and that I now just want to pay in the difference of the amount that would be R85 then they must please go ahead and cancel my account instead I was put on hold for like 10minutes whereby I got a response to rate there service and that was the end of the call. Every time I have to explain the reason why I want to cancel and its simple u cannot provide the product that u have promised me ( a month later still no internet and idle status on to be investigated) ***