not sure if it could be devalued anymore.. two currencies operate in ARG the ARS peso and the ARSB blue peso
either way one USD will buy 1000 ARS or 1200 ARSB
their currency is literally worthless
no one would buy ARS when they can get more blue for the same amount of USD
however the ARS is the official currency
trade is conducted in ARS I assume surely if the economy stabilises and the ARS strengthens they would look to kill off the ARSB once and for all stopping two speed currency