If Apple billed your SuperGrok subscription and you want a refund, go to...
https://garrettsbestblogs.theglensecret.com/how-do-i-cancel-and-refund-supergrok-if-i-have-both-iphone-and-ipad
If Apple billed your SuperGrok subscription and you want a refund, go to reportaproblem.apple.com and sign in with your Apple ID. Find your purchase under iOS Subscriptions and request a refund there