If Apple billed your SuperGrok subscription and you want a refund, go to...
https://www.beacon-bookmarks.win/to-cancel-grok-correctly-use-the-same-billing-channel-where-you-signed-up
If Apple billed your SuperGrok subscription and you want a refund, go to reportaproblem.apple.com and sign in. Find your purchase under iOS Subscriptions, then select “Report a Problem” to request a refund