Hi All,
I asked a query on this very subject in another thread a short time ago but it looks like this thread perhaps should've been my first port of call.
Earlier today (and what prompted me to find this forum), I tried to send USD to Argentina from the UK, only to be told that I can only send GBP. I can do it through my UK bank, however they charge £25 a pop. It sounds like USDC could be a potential improvement. Thank you very much for the info. I shall investigate further.