If Apple billed your SuperGrok subscription and you want a refund, go to...

https://source-wiki.win/index.php/Can_I_Refund_a_Monthly_Subscription_Through_Apple%3F

If Apple billed your SuperGrok subscription and you want a refund, go to reportaproblem.apple.com and sign in with your Apple ID. Find SuperGrok under iOS Subscriptions, select the purchase, and request a refund