If Apple billed you for your SuperGrok subscription and you need a refund,...

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

If Apple billed you for your SuperGrok subscription and you need a refund, visit reportaproblem.apple.com and sign in. Go to the iOS Subscriptions section, find SuperGrok, and request a refund there