Sometimes our Brazilian customers are confused by the fact that the amount they paid for their order is different from the amount they see on a landing page:
Here's a thing: these R$448,50 we have on our website page is only the price of one evaLIGHT device without any shipping costs and taxes. So, the additional costs for transportation appear (taxes are not included in all the cases!) and the final sum is calculated before the checkout.
This amount can be also converted from BRL to USD and back in your cart. So, the additional conversion fees can appear. It really depends on the payment type you choose and what conversion rate is used by the banks processing this payment.