Use the steps below to request a refund:
Apple App Store
1. Sign in to reportaproblem.apple.com
2. Tap or click "I'd like to," then choose "Request a refund"
3. Choose the reason why you want a refund, then choose Next
4. Choose the app, subscription, or other item, then choose Submit
Google Play Store
1. Go to play.google.com
2. At the top right, click your Profile picture
3. Click Payments & subscriptions and then Budget & order history
4. For the order you want to return, click Report a problem
5. Select the option that describes your situation
6. Complete the form and note that you'd like a refund
7. Click Submit