Never ask for a refund. If u decide to invest real money in this game. Be sure u will never want a refund. I mean in not a normal refund when you can get back your money and they get back what they sold to you. After you requested the refund, your gem balance goes under 0 and if you want to play again, you have buy again those gems. So is a win win situation. So, if you do a purchase by mistake, you will never see those money if you want to play again