And I do not suggest trying to bribe them!
Def not!
Thanks for the advice stevenbsas et al. School is trying to make up for the lost time but I'm afraid that after a certain point we would need be 'oiling' someone within Ministerio de Educacion to help push it through the different dptments. (and to be fair to the uni, Ministerio de Educacion told them the first time that they won't/can't legalized the documentation that DNM was asking - it was my mistake to NOT push them harder to comply and wasted time believing them that "nothing could be done" before my first turno).
Anyway, on DNM website I found this regarding MERCOSUR:
No mention of EXTRA MERCOSUR, would it mean that I do need or is it more like based on one's face/humour?