If you want a refund for SuperGrok, first check if Apple or someone else billed...

https://star-wiki.win/index.php/How_Do_I_Use_Reportaproblem.apple.com_for_a_Subscription_Refund%3F

If you want a refund for SuperGrok, first check if Apple or someone else billed you. On your iPhone, go to Settings > your name > Subscriptions to review your active charges. Keep in mind, canceling the subscription doesn’t give you a refund automatically