If Apple billed your SuperGrok subscription, visit reportaproblem.apple.com to...

https://instaquoteapp.com/why-does-apple-make-me-request-a-refund-separately-from-canceling/

If Apple billed your SuperGrok subscription, visit reportaproblem.apple.com to request a refund. Go to iOS Settings, tap your name, then Subscriptions, and find SuperGrok to review or cancel