To cancel Grok properly, make sure you use the same billing channel you signed...

https://wiki-velo.win/index.php/Why_Can%E2%80%99t_I_Cancel_Grok_from_grok.com_When_Apple_Bills_Me%3F

To cancel Grok properly, make sure you use the same billing channel you signed up with—whether that’s 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