If She/he denies the extension of the visa, you will need to have a bank account in Brazil in an effort to get a refund. If you're crossing a land border and intend to return to Brazil (e.g. after a day trip to Paraguay or Argentina), the last number on https://gemstonic.com/userinfo.php?com=profile&user=crystle.riddle.451692&op=userinfo&mod=space