Well thats a knee jerk reaction right there buddy,but if you bother to think about it for a while you will realize thats what they are doing.I'm fully behind them on this one.
I'm in the same boat as you because our area is over subscribed and under serviced by dslams,my friend on a 4mb line only gets speeds that a 1mb line should experience,it will cost them more to switch everybody to 10mb in my area than installing the new infrastructure which wont become outdated anytime soon so its a great move from telkom because this would eliminate the need for a double upgrade because 10mb is not cutting edge anymore.
Have patience and let the get things done.Even if you dont want faster than 10mb/s naturally the prices of 10mb/s would come down with the new infrastructure.