Grok limit reached. What do I do now?

[VeganRod]

Grok displays the message: “You’ve reached your limit. Come back.”

How long do I need to wait before I can use Grok again?

Is there a way to purchase additional Grok usage time?

Also, is the Grok usage limit shared across both of my Teslas under my account, or does each vehicle have its own separate usage limit?

 

[VeganRod]

I see I can buy more time on grok. IfI pay it all at once, I can get Lite for $100 a year, and superGrok for $300 a year.
What do people recommend?