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

https://dantevrib041.fotosdefrases.com/what-does-report-a-problem-do-on-apple-purchases

If Apple billed your SuperGrok subscription, you can request a refund at reportaproblem.apple.com. Go to your iOS Settings, tap your Apple ID, then Subscriptions, find SuperGrok, and select "Report a Problem