TELKOM little to no internet and NO land line !!! (47 days and counting)

I upgraded my Telkom line from a 2mbps line to 8mbps. That was the day all my problems started. My internet became unstable and barely had 2mbps ad my landline disappeared completely. I logged a fault with Telkom on 26 October 2017. The fault was for less than the initial 2MBPS line and absolutely NO land line. My internet line got worse every time I spoke to one of the call centre staff to a point that I had NO internet as well. I call weekly and every time they say that they will "escalate" the problem. I am also told that Telkom does not have enough technicians on site and there is a backlog of repairs. Every time I call, each operator does something different and gets my hopes up and then, nothing. You cannot tell me that all faults are now NO one's been on site to see what the problem is. I now have about 2MBPS at least but still NO land line. I really don't know what to do anymore and just cannot grasp the fact that Telkom cannot fix the problem. I just called Telkom again earlier this afternoon and said that a technician will phone me in the morning. I don't believe that anymore and will be very surprised if this happens - I heard this one before. I have just about had it and will cancel my service with Telkom if this problem is not resolved by the end of this week, 15 December 2017.