My phone crashes sometimes when I try to buy gems through the game. I'll be charged for them and get a receipt from google play, but never receive them. I'm assuming it is because my phone crashed, though this may or may not be the case.. Not sure if it's a problem all across the board, but it's happened to me multiple times now. It'd be nice if I could get some gems without the game crashing and then having to go through all the hassle of contacting Gree.

And on that note, my game does seem to have a few random crashes out of nowhere as well, sometimes it'll end up not saving my game and sends me back to re-do things I've already completed which is unfortunate and time wasting.