All purchases are processed by the store where you downloaded the game from, so please contact the store's customer support to request a refund.
Go to the Google Play Help page, and follow the instructions for your device.
If the store refers you to Playrix, reach out to our Support team and include copies of your transaction receipts.
To get in touch with us, tap “No” at the bottom of the article, then select “Chat with us” and send us a message.