Go to the Steam Support website
Sign in to your Steam account
Select the purchase you want refunded
Choose the reason for the refund
Click on “I’d like to request a refund”
Submit the refund request
Wait for Steam’s response by email
Check that the purchase is within Steam’s refund policy
Make sure the request is made within 14 days of purchase
Make sure the game has been played for less than 2 hours
If approved, wait for the refund to be processed to your original payment method or Steam Wallet