I'm not there yet, but I could apply in San Martín. However, their requirements in the document on your site show they are requesting the DNI as identification although we have art. 4° of decreto 3213/1984, so is the user supposed to argue with them in person? Also, if I work for an international company, are they going to accept bank statements showing incoming wires as proof of economic solvency or would it be better to submit a declaración jurada instead?