A. To ensure your refund is processed, first check the refund policy on Steam to confirm your purchase is eligible. If it is, go to your account's purchase history, find the transaction, and click on 'Request a Refund'. Make sure to provide a valid reason for the refund request.
B. If your refund request is still pending, check your email for any communication from Steam regarding the status of your refund. Sometimes, additional information may be required from you.