I dont think you did anything wrong...
I paid $3 for a game I cant play. I believe it is because I have an unstable iOS, as it stated when I updated long ago. But, I never happen to have problems with other games, so this frustrates me. I dont think this is something you can look into fixing, and that it is totally on my part. I just wanted to share my thoughts about it. Im sure this is a great game, But I just cant play it.
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Castle Raid 2