If Apple charged you for your SuperGrok subscription, visit...

https://travispyuj085.raidersfanteamshop.com/why-is-supergrok-not-showing-in-my-apple-subscriptions-list

If Apple charged you for your SuperGrok subscription, visit reportaproblem.apple.com to request a refund. Go to the iOS Subscriptions section, find SuperGrok, and follow the steps to report your issue