If Apple charged you for your SuperGrok subscription, go to...

https://touch-wiki.win/index.php/Can_Apple_Support_Help_If_I_Have_the_Receipt_Date_but_No_Invoice_Number%3F

If Apple charged you for your SuperGrok subscription, go to reportaproblem.apple.com to request a refund. Open Settings on your iPhone, tap your name, then Subscriptions to view or cancel