If Apple billed your SuperGrok subscription and you want a refund, go to...
https://magic-wiki.win/index.php/SuperGrok_Not_Showing_in_My_Apple_Subscriptions_List%3F_Here%E2%80%99s_Why_%26_How_to_Fix_It
If Apple billed your SuperGrok subscription and you want a refund, go to reportaproblem.apple.com and sign in. Find SuperGrok under the iOS Subscriptions section, then select “Report a Problem” and request your refund