Before reaching out for a refund, please make sure you've canceled your purchase. You can easily do so by following these instructions provided by Google Help. When you cancel a subscription, you can still use the app through the period you’ve already paid for.
According to our Subscription Terms, if you purchased your subscription through Google Play and are eligible for a refund, you must request it directly from Google. To request a refund, follow these instructions from Google Play and learn more about how to get a refund on Google Play Help.
For more information about this process, open the app and navigate to Settings > Legal > Subscription Terms.
Please note that if your refund request is approved, you’ll immediately lose access to the app.