I've not received several of my in app purchases, it's hit or miss. And don't expect for them to fix it. Arguing is pointless. They won't give you the benefit of the doubt and compensate with their virtual currency, they value it more then the real money that they won't be receiving anymore over a few dollars. And don't expect to win anything once you buy from them. Expect to get your wins cut by at least half once you give them a dime. Keep it free, they don't really value paying customers.