Fault reported from February- still not resolved

I installed a Telkom landline and internet line in February 2015 and reported a faulty landline since February 2015. There is very bad static on the line. I have reported this on-line and escalated the faults every week since. I have informed the technicians to come out on a Friday or Saturday when I am home however they never do and then close the call. This has been happening for months now. Last week last spoke to a manger called Lelethu at the call centre when reporting the faults and she assured me that she will speak to the technical manager at Durban and that someone will definitely sort out the land. She informed me that she will call me and follow up. When the technician call me I told him to come out on Friday or Saturday however no-one came out and today the fault is closed. It appears NO-ONE at Telkom care however they are very good at ensuring that they bill you every month even though they are not providing a proper service