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

https://instaquoteapp.com/why-does-apple-make-me-request-a-refund-separately-from-canceling/

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