a bit hard as the 2 pages show different words for same action, my problems are
1 set add friends to -1 credits and if user only has one credit they can add 200 or more friends until someone accepts one of the sent request then it takes the one credit
2 set add groups or just about anything to +1 credit works fine but if i make a group or post a photo after i get my one credit i can delete the group or photo or anything else i done to get that credit and i still have that credit it does not take it away