To cancel Grok correctly, use the same billing channel you signed up...
https://elliottkykp923.yousher.com/if-my-x-premium-was-bought-on-android-where-do-i-cancel-it
To cancel Grok correctly, use the same billing channel you signed up with—whether that’s grok.com/Stripe, Apple Subscriptions, Google Play, X Premium on x.com, or your Business/API billing portal at console.x.ai