If Apple billed your SuperGrok subscription by mistake, visit...

https://www.4shared.com/office/3rwv2w8_ge/pdf-73301-13539.html

If Apple billed your SuperGrok subscription by mistake, visit reportaproblem.apple.com to request a refund. Go to Settings > your name > Subscriptions on your iPhone to review or cancel, but note canceling won’t refund past charges