User blog comment:Akrie/HUGE May 15th Events & Updates~!!/@comment-26314182-20150515181116/@comment-24956068-20150515192343

The coupon is different with pre-registration; if you received the Cream Puff Cookie but not the Crystal, I would suggest you to contact the game's Customer Support.

Another thing that you need to remind that, the amount of Crystal will be added even before you see the pop-up; so some of you may have mistakenly thinking that you didn't get the Crystal.