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

https://touch-wiki.win/index.php/How_Do_I_Get_a_Google_Play_Refund_for_SuperGrok_Within_48_Hours%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