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No exchanges there?

Not that will pay cash, no.

I'm an expat, and therefore not allowed by law to have a bank account here, because Argentina ;)

I've said it before, let me say it again. Argentina is to politics, (government, law, logic, etc), what non-Euclidian Geometry is to Mathematics - the rules are just different.

Well that is no good... You need to be able to buy things with crypto, problem solved!