You may just have an incompatible device. Nearly every Android device works just fine with our game engine, but there are A LOT of Droids out there (11,000 in Google's list). There are a few Samasung models in particular that for some reason won't play any of our games, and that includes several in the Duos family. My guess is yours is one of them

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Unforunately there's nothing we can do about that. You can request a refund by following a link from the Google Play receipt. I know that's a sucky "solution" but that's all I've got!