To get a refund for SuperGrok billed by Apple, visit reportaproblem.apple.com...

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

To get a refund for SuperGrok billed by Apple, visit reportaproblem.apple.com and sign in. Navigate to your iOS Subscriptions, find SuperGrok, and request a refund there