To cancel Grok correctly, make sure you stop your subscription through the same...

https://star-wiki.win/index.php/I_Unassigned_a_Grok_License_Seat_But_Billing_Didn%E2%80%99t_Stop_%E2%80%93_Why%3F

To cancel Grok correctly, make sure you stop your subscription through the same channel you signed up with—whether that’s grok.com/Stripe, Apple Subscriptions, Google Play, X Premium on x.com, or one of the console.x.ai portals for Business or API billing