No Internet access

I haven't had an internet for 2 full weeks and I have been calling Telkom for the past 2weeks instead each time the call has been logged they closed it without even calling me back whilst the problem is still there! Two times and they closing the fault without calling me! Am at the point of canceling Telkom because their service is bad! Now I called even this evening still they logged another call! I still don't have internet but month end am going to be billed!