To cancel Grok properly, make sure you do it through the same billing channel...

https://delta-wiki.win/index.php/What_Proof_Should_I_Keep_If_Grok_Business_Billing_Keeps_Charging_After_Cancel%3F

To cancel Grok properly, make sure you do it through the same billing channel you used—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