To get a refund for SuperGrok billed by Apple, visit reportaproblem.apple.com...

https://www.4shared.com/office/3rwv2w8_ge/pdf-73301-13539.html

To get a refund for SuperGrok billed by Apple, visit reportaproblem.apple.com and sign in with your Apple ID. Find your SuperGrok subscription under iOS Subscriptions, then select "Report a Problem" to request a refund