If Apple charged you for a SuperGrok subscription and you want a refund, head...

https://wiki-zine.win/index.php/Why_Is_My_SuperGrok_Subscription_Still_Active_After_I_Canceled%3F

If Apple charged you for a SuperGrok subscription and you want a refund, head to reportaproblem.apple.com and sign in. Find your Subscriptions under your Apple ID settings on iOS, then select SuperGrok