Looks like Argentina is not making any exceptions for people who have not paid their reciprocity fee in advance...

http://www.infobae.com/notas/702352-...-turistas.html

People are not being allowed to enter the country and being sent home or to another country if they have not paid the fee in advance. Seems like most of these flights are coming from places other than the visitor's home countries as those airlines should not allow them to board without proof of payment.

In other news, seems like some airlines do also not understand that the visa was good for 10 years and if you paid before you do not need the proof of payment, just your visa stamp. Some people have been forced to buy another visa and others had to go up several levels before they were allowed to board.