Trouble trying to buy Power BI Pro License

Hi,

I'm having trouble trying to buy the Power BI Pro. When I access the link https://powerbi.microsoft.com/pt-br/pricing/ it only appears an option for me to evaluate for free, rather then the option to buy it,

Even when I click at TRY FREE I'm redirected to the login page, not being able to neither activate nor purchase.

Thank you!