No response to faults logged

I logged a call 21 Oct 2017 at 08:30am for slow broadband speed. After following up several times with the service desk, being promised that someone will get back to me, the fault number was closed more than a week later (30 Oct 2017) without resolving the issue. That was after I had to log an escalation against the incident (28 October 2017) and received an escalation number. On 30 Oct, I was forced to log a new request as the issue was still not resolved and after being cut off by the service agent on the phone when asked to speak to a supervisor. As of 31 Oct, the issue was still not resolved. Currently I am paying for a 4 Mb line, but are receiving 0.5Mb speed at the same price. Today (1Nov) Telkom for the first time made contact with me just to ask me to do a speed test, then again referred it to another technician who will apparently now have to come out to my house. So, now I have to pay R350 for a technician to come out despite the appalling service an treatment I received up until now. I lost all faith in Telkom. I wish I can move to a different service provider!