If Apple charged you for a SuperGrok subscription, go to...

https://wiki-global.win/index.php/SuperGrok_and_Grok_Are_Confusing_Me_%E2%80%93_What_Am_I_Actually_Subscribed_To%3F

If Apple charged you for a SuperGrok subscription, go to reportaproblem.apple.com to request a refund. You can also check or cancel your subscription via Settings > [your name] > Subscriptions on your iPhone