1. For Google Refund Policy:

Google may give refunds for some purchases made through Google Play’s billing system, based on the refund policies described below. Refund policies are different depending on what you bought, when and how you paid, and where you’re located

If you give your account or payment details to someone else, appear to be abusing our policies, or don’t protect your account with authentication, we usually can’t issue a refund.

- If you find a Google Play purchase on your card or other payment method that you didn't make and that wasn't made by anyone you know, report unauthorized charges within 120 days of the transaction.

- If you find a Google Play purchase on your card or other payment method that was accidentally made by a friend or family member with your account, request a refund instead.

You can submit a refund request: https://support.google.com/googleplay/workflow/9813244?sjid=7406178336225872167-NC

2. For Apple Refund Policy:

Some purchases from the App Store, iTunes Store, Apple Books, or other Apple services might be eligible for a refund. You can use any device with a web browser to request a refund.

You can submit a refund request: https://support.apple.com/en-us/118223