I had an issue with an in app purchase and I attempted to contact the developer and have not gotten a response at all. The purchase gave me upgrades on weapons and armor. When I went to further upgrade armor they went from being level 12 to level 9. I keep getting a notice telling me I have to upgrade my weapons to level 16 despite them being level 20 from the upgrade. The developers are not responding to my emails and Google is denying a refund.