Can anyone please tell me the 30 day crystalline aura on the SA servers?

I don’t know why , but my in game store is in brazilian real R$ , instead of chilean peso or USD.
The 30 day crystalline aura appears at R$8,500.00 , what I interpret as eight thousand five hundred brazilian real , but tha’s over one thousand USD.
Am I reading that wrong? can anyone from Brazil please tell me how to read that and the actual cost?