Hi, the banking so far has been good. Received intl. transfers from what in Europe would be called questionable jurisdictions like Dubai and BVI and had no problem. However, we are talking about 10s of thousands, not hundreds or millions. I did cash deposits at the self-serving ATMs, also 10s thousands of dollars, sent them abroad right away, no problem.
I believe the bank is not reporting, bc they to this day do not actually know in which country I have/had tax residency prior my arrival.
I travelled and applied for a residency (10 years tax holiday on foreign income). I think that is the best way. Once you have a cedula (local ID), they do not question why you want the bank acc.
I can also report that I was able to open bank acc at Itau and state owned BROU. You need three local references (you give local phone numbers), and they call to the person, if they know you.
Santander and Scotia have not been so friendly. HSBC was prone to open, but they needed some more proofs, mostly to know your net-worth and they needed to see volume you have in your previous bank accounts.
I managed to do this on my very limited Spanish, if you are fluent, big plus.