For unknown reasons workspace accounts get ridiculously slow roll outs of new models.
The only way to get the latest models with decent limits on a subsidized plan is to pay the full cost (monthly or yearly) for the pro plan or higher on a personal account.
Promo "pro" accounts and discounted "pro" accounts get much worse limits and model selection.
If that last is accurate, that seems like a terrible choice. I signed up for a 3 month discounted Pro trial to see if Gemini was worth trying against Claude and ChatGPT, then ran into an hour long lockout after my first serious prompt to Argon. Not a great first impression.