Greetings!   

Thank you for your message. I am extremely sorry to hear that your account has been compromised and I understand how frustrating this must be.

This happens after revealing your Game Center or Google account login details. With your information, others can get access to your account, subsequently stealing your data.  

That is why we need to make sure that the rightful owner recovers the compromised account. To verify this, we need the receipt from your first purchase made to the game (a screenshot from your iTunes or Google Wallet purchase history is also OK) on this account. If you started playing on iOS, you can also send an iTunes receipt that shows when you installed the game. Without this, we cannot proceed. 

In addition, we would like to ask you some questions to confirm that this account is yours