If Apple billed your SuperGrok subscription, canceling won’t get a refund...
https://www.bookmarking-presto.win/if-you-want-a-refund-for-supergrok-first-double-check-who-charged-your
If Apple billed your SuperGrok subscription, canceling won’t get a refund automatically. To request one, go to reportaproblem.apple.com, sign in, and find your purchase under iOS Subscriptions