Does anyone know any details on this? "Effective immediately, any passenger visiting Argentina with an American, Canadian or Australian passport will be required to pay in advance the Reciprocity Fee online. " We will be flying from IGR to AEP on 11/27, would we have to pay that fee as Americans? It seems to have certain dates and airports that fall into the mix of having to pay this and can we pay when we get there instead of in advance? Any information would be appreciated!