RE: Club is out of control... what to do?
I realize you are VERY frustrated with these dudes, buts lets think about just how bad this really is. You have the wrong kind of grass. It's not the end of the world and probably not worth destroying the club over. Don't reimburse them right away, make them beg for it. Make it clear this is the last time they get any money for purchases.
Since they didn't seed the overruns like you wanted, go ahead and do that yourself.
Tom