Telkom, so disappointing once again

So about 2 months ago I wrote a review wrt my ADSL line as I was being billed for a 40Mbps line (Telkom offered the upgrade +/- 3 months prior) however to this day I have not had anything more than 12Mbps (on a good day!). Telkom eventually gave me a rebate (charging me R950 for 2 months as opposed to R1400, which effectively meant they acknowledged their error). imagine my surprise though when this month I receive ANOTHER bill for R1400, still not having the full extent of my '40Mbps' line and to make matters worse my wifi has been down for the past 5 days. Please improve your damn infrastructure and also keep your call centre properly informed as I have received feedback that the fault that I logged was resolved yesterday however after calling in (again and again!) it was brought to my attention that the issue is pretty much NOT RESOLVED!!!! You'd think that being the premier/largest telecoms provider in in the COUNTRY they would have all these minor mishaps under control... guess not.