Please see which "provider" you signed up with here
Credit Card/PayPal
If you did not cancel your trial before you were charged, we are unable to proceed with a refund. Downloadable software, digital goods, and services rendered are non-refundable.
Google Play Store
Request a refund directly from Google Play here
Apple
Apple manages all its subscriptions and purchases directly, so we are unable to refund, cancel, or manage accounts created through Apple.
1. Request a refund from Apple directly using this link
2. You can also click here to start your refund request through Apple’s automated system.
3. Or watch this video to learn how through the app store
Amazon
Apps and In-App Products purchased from the Amazon Appstore may be eligible for a refund within 90 days of purchase, depending on the circumstances of your order. To request a refund, visit Your Orders and select "Return for Refund" next to that order. If you do not see a "Return for Refund" button, you are not eligible for a refund for that order. For more information please click here.