empty promises

I have had internet with telkom since August 2014 and I am paying for a 4mb line, but not once have i gotten my correct speed. they keep sending out technicians and they keep telling me that the problem lies somewhere else, other than my house! today i received yet another phone call saying they are going to send out another technician after i spoke to a lady last week she confirmed that the problem is in fact not at my house but with the cables iv logged a call with their accounts department and they said they will call me within 6days it has now been 3 weeks and still no call, but they continue to send me bills(which i refuse to pay) So if by the end of this week my line is not sorted out, i will take the up with my lawyers and i WILL name and shame telkom all over social media! i am fed up with the constant lies form telkom if they cannot support the service they offer then they should not offer it in the 1st place i have friends who have the same problem, and we really dont know what to do. i cant afford to sit on hold to telkom 4 hours every day just for nothing to happen! hellopeter is my 2nd last attempt to get some answers from telkom I hope this gets treated with urgency!!