For any of you going to Argentina, the Reciprocal Fee needed for entry by citizens of USA, Canada, and Australia is now required (1) to be paid on-line BEFORE leaving for Argentina, and (2) is being applied at not only at EZE but at other entry points as well. We almost were denied entry back into Argentina from a day trip by ferry to Uruguay as we were not carrying our proof of payment. Fortunately, the ferry boat agent let us go to their computer where I could log-on and reprint the document. From now on, we will have a copy inside our passports at all times where Argentina is involved.
(I tried to post this yesterday but didn't work, so hope I am not duplicating.)