Originally Posted by
PrincessCupOButter
If you bought a trap, the 20 gems are a refund, since the traps cost 20 gems. But there were 2 traps given in the individual prizes, the 2nd prize was a fools gold trap and the 4th prize contained another one. If you had not yet purchased any traps, the 2nd prize autocompleted the requirement which made the 20 gems a bonus!
Just a tip for future events......hold off on purchasing the trap in these type goals until you are certain you'll be able to complete the entire set of goals in order to get the gem refund. If by chance we get a trap as a reward or drop, it may not have to be purchased at all!