With WU there is no actual money coming into the country. WU Int'l is the receiving agent hat recovers the funds from the US, UK, EU...etc. account and the WU Argentina is the agent that pays out the pesos here in ARG.The government is K, they are Peronist, so they focus on the behavior of nationals, specially those who bough large amounts of usd and sent them abroad during the M regime and those who got help during the Pandemic and didn't use it for salaries payment.
WU money transfers are out of the radar because this is family assistance.
They are worried about money flight not many comming into the country.
For more specific question you need to pay a consultation with an accountant. I can recommend one,