What effect is Government and ICASA having on the market? A big fat ZERO. If you got rid of "Government Interference" and ICASA, you would still have exactly what you have now. A pricing cartel. Run by the dominant player for the financial benefit of the dominant players.
The real problem is a lack of effective government interference, and a toothless and directionless regulator.
There can be no text book competition in SA - competition that will drive down prices - until the playing field has been flattened. And you need strong and efficient regulation to ensure a fair playing field.
The competition commission has demonstrated it has the teeth. It is just a crying shame that the high court ruled it had no jurisdiction in the telecoms sector, and placed the competition "ball" in the shaky butter fingers of ICASA.