From the MyBB conference it became very clear that Afrihost were selling their business accounts at a loss. And now it's coming to bite them in the ass. They are by far the cheapest compared to other ISPs for that offer, something was definitely up. Even Axxess has started to throttle their business accounts. It just wasn't "sustainable. Same thing happened to the home accounts months ago.
We've always used a model to subsidise our bandwidth by investing our "marketing budget" into making our prices cheaper. So the money we could have spend on TV advertising, radio advertising, etc, get put back into our pricing to make it more affordable to clients. This also allows us to price below cost in some instances.
However, we do forecast and ensure that our pricing is sustainable, because we don't ever want to be in a position where we have to raise prices. The savings we make always go back into making products more affordable or attractive.