To cancel Grok properly, you need to stop your subscription through the same...

https://super-wiki.win/index.php/Is_xAI_API_Billing_Separate_from_SuperGrok_Subscription_Billing%3F

To cancel Grok properly, you need to stop your subscription through the same platform you signed up on—whether that’s grok.com via Stripe, Apple Subscriptions, Google Play, X Premium on x.com, or the console.x.ai portals for Business or API billing