URGENT! Did anyone buy this thing? I am having huge trouble making a payment for it - i already have a reservation, and somehow my gringo credit card is not working...I've called (and yes, in Portuguese, i can speak it), so im really at my wits' end and wondering if any fellow travellers have managed to buy this pass without probs. Another reason is because i know i can buy it at a travel agency but frankly dont have the dough to pay that 10% service fee... Any response is welcome- thanks a lot! Today is last day of purchase..!