If Apple billed your SuperGrok subscription by mistake, visit...

https://fernandowehn083.timeforchangecounselling.com/do-i-need-to-cancel-supergrok-before-requesting-an-apple-refund

If Apple billed your SuperGrok subscription by mistake, visit reportaproblem.apple.com to request a refund. Go to Settings > your name > Subscriptions on your iPhone to review or cancel, but note canceling won’t refund past charges