If Apple billed your SuperGrok subscription, you can request a refund at...

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

If Apple billed your SuperGrok subscription, you can request a refund at reportaproblem.apple.com. Just sign in, find your purchase under iOS Subscriptions, and select "Report a Problem" to explain your issue