Generally, items bought in our games are non-refundable. But in certain cases, it is possible.
Purchases made on an Apple (iOS) device
If the purchase was made on an iOS device, we cannot handle the refund. We suggest that you visit the Apple support page and log in with your Apple ID to request a refund:
https://support.apple.com/en-us/HT204084
Purchases made on an Android device
Send an email to our Support Team. Please include the receipt that was sent to the email address associated with your Google account.