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

https://meet-wiki.win/index.php/SuperGrok_Subscription_Shows_Active_Even_After_I_Canceled_%E2%80%93_What_Should_I_Check%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 app doesn’t automatically mean you’ll get your money back