Open Steam and sign in
Go to Steam Support
Select the game, software, or purchase you want to refund
Choose the issue related to the purchase
Select I would like a refund
Pick the refund method if available
Fill out the refund request form
Submit the request
Wait for Steam to review and process the refund
Check your email or Steam Support for the refund status
Make sure the purchase is usually within 14 days and under 2 hours of playtime for games