If you want a refund for SuperGrok, first check your billing statement to see...

https://yenkee-wiki.win/index.php/Is_There_a_Difference_Between_Canceling_SuperGrok_and_Ending_It_Immediately%3F

If you want a refund for SuperGrok, first check your billing statement to see if Apple or another service charged you. Next, review your iOS Subscriptions to confirm the purchase