This is my last post on this subject as some of you people are really dense. I have been living in Argentina with my Dominican girlfriend for morre then a few years so I think I know whats happening here. First off EVERY ONE gets a visa stamp when they enter this poor excuse of a country. ( Its really just a soccer fan club with a really big flag) Ninety days tourist visa unless you have residency. Its free, its automatic. They require a pre-approved , pre-paid visa's from dangerous people. (for example US citizens, like myself). My girlfriend and I just returned here ( Argentina ) and as long as she had a return ticket to get out there there is no entrance requirements, just proof that you can get out again, much like many other country's.
Im just curious to know when was last time that you and your girlfriend were in Argentina, as you know rules can change, last year we could go to Chile and starting September 2013 they started to ask for visa to Dominicans, so the same way after Chile Argentina did the same thing.
I have an Argentinean friend that is actually living and working for a company in Santo Domingo and he confirmed to me that now Dominicans can not visit argentina if we dont have an aproved visa before departure.