Here is a site where they are defending claims about them, this particular page tries to defend poorly qualified instructors.
http://www.gkrkaratescam.com/instructors.html
I think it is trying to defend the practice of using non black belt instructors wearing black belts. That was one of the things that I find wrong. If the guy is a green belt he wears a green belt. Simple. No black belts, white stripe or otherwise.