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

https://domgodwinson38.gumroad.com/p/what-if-supergrok-isn-t-listed-under-subscriptions-but-i-was-charged

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