If Apple billed your SuperGrok subscription and you want a refund, go to...

https://smoothdecorator.com/how-do-i-cancel-supergrok-if-settings-subscriptions-is-blank/

If Apple billed your SuperGrok subscription and you want a refund, go to reportaproblem.apple.com and sign in. Find SuperGrok under the iOS Subscriptions section, then select “Report a Problem” and request your refund