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

https://kilo-wiki.win/index.php/What_Does_Apple_Mean_by_%22Item_Didn%27t_Download_or_Can%27t_Be_Found%22_for_Subscriptions%3F

If Apple billed your SuperGrok subscription by mistake, visit reportaproblem.apple.com to request a refund. Go to Settings > your Apple ID > Subscriptions to check your subscription status