To cancel Grok correctly, you need to do so through the exact billing channel...

https://blogfreely.net/samuel-wang09/why-cant-i-cancel-grok-from-grok-com-when-apple-bills-me

To cancel Grok correctly, you need to do so through the exact billing channel you signed up with—whether grok.com/Stripe, Apple Subscriptions, Google Play, X Premium on x.com, console.x.ai for Business, or console.x.ai Billing for API auto-recharge