To cancel Grok correctly, you need to do it through the same billing channel...
https://www.4shared.com/office/Ry_OlxVffa/pdf-67541-51151.html
To cancel Grok correctly, you need to do it through the same billing channel you used to subscribe—whether that’s grok.com (Stripe), Apple Subscriptions, Google Play, X Premium on x.com, or through console.x.ai for Business or API billing