Thanks!
The topic has references to corruption, but has a good amount of other info too. If one is considering sending a child to a private school, the costs of doing so are obviously relevant and raised here. If anyone has evidence (it's currently in the news), perhaps it's sufficient alone to say TIT, that payments other than the usual fee are the norm, probable or whatever, then I believe it's relevant to say so.
Incidentally, my view is those who pay are the idiots, but that really is another topic.