Your link:
"Bolívar, Central and Confederado Banks were among eight banks taken over by the government in late November
as a result of a mini banking crisis that prompted the arrest of a number of prominent bankers for violation of banking regulations.
"As a result of the merger of the three banks with the already state-owned bank, Banfoandes, it is estimated that the Bicentenary Bank now holds nearly 20% of all deposits in Venezuela."
What about the other 80% of bank deposits?
Were they held in private banks?
Doesn't look like it, at least not 80%. Again, I don't know why it matters. When you own everything, what difference does it make who holds the accounts?
If I own your house, does it really matter who owns the mortgage? No. Because I own the house, no matter who has the mortgage.
That said, from what I've read, out of the largest banks in the entire country, two of the largest are state owned:
Banco Bicentenario Banco Universal
and
Banco de Venezuela
Both of these banks, appear to have roughly 1/5 of the market.
That means at best 3/5 of the deposits in the market are with private institutions.
However, those banks are much smaller than the government run banks. Spanish to english translations pages are not perfect, but it appears the next largest bank is just 7% of the market... compared to the 40% for the state run institutions.
However, even ignoring that state control and ownership of the means of production is key to your argument, the reality is, none of the banks matter. None of them do.
You can't get $1 out of the bank in Venezuela. I tried.
What difference does it make, when none of the banks, state owned, or privately owned, have any money?
Totally irrelevant to the discussion.