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

https://mega-wiki.win/index.php/How_Do_I_Find_the_SuperGrok_Subscription_Charge_in_Apple%E2%80%99s_Recent_Purchases%3F

If you want a refund for SuperGrok, first make sure Apple actually billed you—not a third party. Check your iOS Subscriptions in Settings to confirm. Remember, canceling doesn’t automatically refund your payment. To request a refund, go to reportaproblem