If all the purchase process was successful, items bought in our games (in-app purchases) are non-refundable, except in some specific cases where an exception could be made. 
 
If you made a purchase on an Apple (iOS) device:
For purchases made on an iOS device, we have no authorization to handle refunds on your behalf. Please contact Apple support and explain your case.
 
If you made a purchase on a Google (Android) device:
We would need you to contact us and send us a screenshot of the specific receipt. Please be sure the transaction ID appears there. It looks like this GPA.1234-1234-1234-12345 You can find all your purchases made on Google Play in your Google Payments account