Also, the UN bank can threaten to kick out your central/federal bank too.
Also an interesting example of bank politics is that Khadaffi made several laws in Libya against UN bank rules, for example providing loans with infinite term and zero interest for newlyweds. During the civil war, one of the first things the rebels did was create a central bank in Misrata, pledge loyalty to UN and then redquest to be recognized as the true Libyan Government.
> the UN bank can threaten to kick out your central/federal bank too
This does not exist. Central banks interface with each other. The closest thing to what you're describing is the European Central Bank.
> pledge loyalty to UN
This is gibberish. One can be recognised by the United Nations (UN). One can also, by accepting its Charter and paying one's fees, become a UN Member. But there is no pledging of fielty involved.
None of these is referred to as "a UN Bank". Only the World Bank is a part of the United Nations system. It makes loans to developing countries. The only way being "kicked out" of the World Bank makes sense would be if it refused to lend to you (which it does often and usually with minimum consequence). Note that the World Bank System lends to many non-UN member entities, e.g. private businesses and non-profits. China got pissed off at the World Bank and IMF last year and effectively kicked itself out by starting a competitor in its "New Development Bank".
The Bank for International Settlements is a discussion forum whose recommendations are not binding. The United States, for instance, added its own touch to Basel III, Switzerland layered on a "Swiss finish" and China, India and many others simply ignored it. Being "kicked out" of the BIS would simply mean you don't get to go to its meetings. Many countries do fine without being BIS members. The Financial Stability Board is an even smaller group with even less tangible activity than the BIS. (It published a book report on rules it thought sovereign wealth funds should follow. Compliance is voluntary and one need not be a member to read or implement, or as more countries have done, ignore, the report's suggestions.)
The closest international financial systems one can be "kicked out" of with consequence are the electronic-dollar transmission system operated by the New York Federal Reserve [1] (you can still use printed dollars if America "kicks you out") and the Society for Worldwide Interbank Financial Telecommunication (SWIFT) [2]. SWIFT is not a club for only central banks–many private banks are SWIFT members, too, and many get "kicked out" for doing varieties of stupid things. They can still move their money around by asking other banks to do it for them.
The international financial Illuminati you think exists does not.
Also an interesting example of bank politics is that Khadaffi made several laws in Libya against UN bank rules, for example providing loans with infinite term and zero interest for newlyweds. During the civil war, one of the first things the rebels did was create a central bank in Misrata, pledge loyalty to UN and then redquest to be recognized as the true Libyan Government.