Are you still using WU to transfer from foreign countries to Argentina or did anybody find better alternatives?
For people with a MACRO banc account there might be one alternative, transfer USD directly as they won't charge commission:
Esta medida tiene como objetivo ayudar a profesionales, freelancers y grupos familiares o personas que reciben ayuda económica a que "cada dólar llegue a la cuenta sin descuentos inesperados".
www.ambito.com
Still depends on what your bank is charging for sending the money.