Found that there is button to select currency in top right corner but site redirected to brazilian version first better to target global target and set default currency to USD.
The site tries to figure out your country based on your IP, and if it is from one of the countries (U.S., Canada, Brazil, Argentina or Eurozone countries), that country comes selected.
We localize by country instead of by currency, because the banking interfaces is country dependent.
If not, the site assumes Brazil as the default for historical reasons, since it is the first country supported, and still our largest audience.
I assume you are from none of the supported countries, am I right? In the next update, we will assume U.S. as default.