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

https://instaquoteapp.com/what-details-does-apple-support-ask-for-on-a-subscription-refund/

If you want a refund for SuperGrok, first make sure Apple actually billed you by checking your payment info and iOS Subscriptions. Remember, canceling the subscription doesn’t give you a refund automatically. To request money back, go to reportaproblem