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

https://fair-wiki.win/index.php/How_Do_I_Keep_Proof_of_My_SuperGrok_Cancellation_and_Refund_Request%3F

If you want a refund for SuperGrok, first make sure Apple actually billed you. Check your iOS Subscriptions or purchase history to confirm. Remember, simply canceling the subscription doesn't give you a refund. To request one, go to reportaproblem.apple