If you want a refund for SuperGrok, first make sure Apple actually billed you...

https://charlie-wiki.win/index.php/What_Confirmation_Should_I_See_After_Canceling_SuperGrok_with_Apple%3F

If you want a refund for SuperGrok, first make sure Apple actually billed you by checking your purchase history or iOS Subscriptions. Remember, canceling the subscription won’t give you a refund automatically. To request one, visit reportaproblem.apple