If you want a refund for SuperGrok, first confirm if Apple actually billed you...

https://tiny-wiki.win/index.php/Reportaproblem.apple.com_Won%E2%80%99t_Show_My_SuperGrok_Purchase:_What_to_Do

If you want a refund for SuperGrok, first confirm if Apple actually billed you by checking your purchase history or iOS Subscriptions. Remember, canceling the subscription won’t automatically get your money back. To request a refund, go to reportaproblem