Wow, if only. I am just across the Ni to you in Monte Vista where I have an office close to the N1 and a home right on the northern side of Monte Vista. At both locations I have Telkom 4Mbs connections.
The office connection and speed are mostly constant at about 2.7Mbs to a max of 3.7Mbs. The home one is problematic indeed. Up until just recently if I got 2.3Mbs I was in heaven with the 2012 annual average sitting at 1.7Mbs.
29th October last year it dropped to 0.65Mbs and then shot up to 3.8Mbs everytime I complained, just to drop again a day or so later. This went on until early February this year (forced a refund from the idiots) Since then it has been varying from 2.4Mbs to 6Mbs on a good day.
Two weeks ago it dropped again this time to 0.8Mbs. Complained and it shot up to 7.5Mbs. Sunday (always after hours) it dropped again to 0.25Mbs. Bitched on the e-mail reporting system and suddenly I have 8.8Mbs. Don't mind them increasing the speed each time, but the downtime inbetween is more than a little irritating.