Poor response time to cable fault

For nearly two years I have been complaining to Telkom of intermittent ADSL connectivity with no resolution to the problem. On 22 July 2017 I lodged another request to look into my problem.

On the 26th they have finally admitted that there is an underground cable fault. Since then there have been 6 technicians assigned to the job with no progress made.

Between the 22nd and today (1 September 2017) I have been **** to, made promises that staff have not kept and generally been given the runaround. The call centre cannot give me any meaningful information as they are at the mercy of the technicians. There is no-one I can contact who does know what is going on or when the fault will be fixed.

On top of this, when I phoned the billing department to as how they dealt with shoddy service and refunding me for the lack of service, I was left very frustrated. I need to carry on paying for a service I'm not getting and may be refunded once the problem is solved. I was told that I can cancel my Debit order and stop paying but that would lead to my service being cancelled.

How does one find a solution to a company that works like this?