Request a refund via Google Play
Unfortunately, we are not able to process Play Store refunds or recover previously purchased in-app purchases because we do not have access to third-party billing transactions.
To request a refund we recommend contacting Google Play Support, by clicking here
Request a refund via Apple
App Store subscriptions are not refundable and this is why we provide a 7-day trial period which allows users to try out our application and cancel the plan before the payment is processed.
You can use Apple's report-a-problem page to request a refund. Apple processes sales and refunds for all iOS, AppStore apps. You can find the link to the page in the confirmation email/receipt or by Google searching for 'Apple report a problem'.
More info how to view and manage your subscriptions is explained here:
https://support.apple.com/en-us/HT202039