Thank you for trying our game.
For valid refunds within 48 hours of purchase:
Go to https://support.google.com/googleplay/contact/play_request_refund_apps. Fill out the form to submit a refund request to Google. You’ll usually get a decision within 15 minutes, but it can take up to two business days.
For valid refunds after 48 hours of purchase:
Contact us by clicking the button at the top or emailing us at email@example.com for your concern providing details on your mistaken purchase.
(IMPORTANT: If you request a refund for a subscription, you will still need to cancel the subscription.)