Where are some sort of instructions for using the Horse Clubs? I have looked at the short explanation in help but even there -- it says rewards must be claimed before event ends but doesn't say how to claim. I stumbled on tapping the purple box and see something (currently we are not finished with item need 40 more or so points). Also as owner is there anyway to eliminate those folks who have quit the game -- we are full with 20 or at least communicate with them to see if they even know it is time to participate?