If you want a refund for SuperGrok, first double-check whether Apple or another...
https://alpha-wiki.win/index.php/Is_There_a_Difference_Between_Canceling_SuperGrok_and_Ending_It_Immediately%3F
If you want a refund for SuperGrok, first double-check whether Apple or another company actually charged you by looking at your statement. On your iPhone, go to Settings > Subscriptions to confirm if you have an active SuperGrok subscription