Bad bad bad services

I have a telkom line that has not been working since the 28 February. I have phoned them several time and still the same old story "we are attending to matter". It almost been 3 months now that I do not have any service from them and still the send me a bill. The following reference numbers I have already with them 174atk010318, escalation number ********** and an account number ********** . My land line number ********** 133