I did this with my sister who was digital nomading in Argentina a few months ago. The easiest thing we found was for me to send her $3k via western union, which converted into an ungodly amount of pesos she picked up down there.
It was super sketchy. When I sent the money, the western union person said there was a chance western union would block it because it was such a large amount, but luckily it went through. When my sister picked it up, they basically stuffed it into a backpack to carry around. Seemed very dangerous to be carrying that much cash (even in the US it would be), but it worked out ok.
Yep, western union do tend to have a long kyc check after your first transfer I think. Which can delay things a few days. But after that I never really had a problem. I never heard of anyone getting their transaction completely blocked though.
It was super sketchy. When I sent the money, the western union person said there was a chance western union would block it because it was such a large amount, but luckily it went through. When my sister picked it up, they basically stuffed it into a backpack to carry around. Seemed very dangerous to be carrying that much cash (even in the US it would be), but it worked out ok.