This is my opinion based on myexp:I've lost streaks, items, rewards and wasted too much money and time that I will never get back. The response I received after contacting the developer was a joke. They're already aware of the purchasing bug, and have been for a while, yet instead of stopping all transactions while they work to fix it, they continue to take everyone's money. The best part is, you can't get a refund for purchases made on this MOBILE APP unless you submit screenshots from a PC.