If Apple billed your SuperGrok subscription, you can request a refund at...

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

If Apple billed your SuperGrok subscription, you can request a refund at reportaproblem.apple.com by selecting your purchase under iOS Subscriptions. Remember, canceling your subscription does not automatically issue a refund