This article is just for those people who subscribed to FitOn (thanks!) prior to us making the app completely free on May 13, 2019.
If you subscribed on Android please simply contact us and provide the original purchase receipt and/or order number (which should start with GPA).
If you subscribed on iOS please contact Apple Support directly to request a refund (here). Apple handles your payment directly through your iTunes account and doesn't pass your payment information to FitOn so we are unfortunately unable to assist with refund requests.