If Apple billed your SuperGrok subscription by mistake, head to...

https://atomic-wiki.win/index.php/What_If_SuperGrok_Isn%27t_Listed_Under_Subscriptions_but_I_Was_Charged%3F

If Apple billed your SuperGrok subscription by mistake, head to reportaproblem.apple.com to request a refund. Go to Settings > your name > Subscriptions on your iPhone to find SuperGrok