If Apple billed your SuperGrok subscription and you want a refund, go to...

https://telegra.ph/Why-Has-Your-SuperGrok-Subscription-Renewal-Date-Changed-07-31

If Apple billed your SuperGrok subscription and you want a refund, go to reportaproblem.apple.com and sign in with your Apple ID. Find your purchase under iOS Subscriptions, then request a refund