To get a refund for your SuperGrok subscription billed by Apple, visit...

https://www.animenewsnetwork.com/bbs/phpBB2/profile.php?mode=viewprofile&u=1221249

To get a refund for your SuperGrok subscription billed by Apple, visit reportaproblem.apple.com and log in with your Apple ID. Find SuperGrok under iOS Subscriptions, then select “Report a Problem” to request a refund