This forum is substantially foused on US banking, so you aren't likely to get much help here.
Having said that, do you have a visa to live and work in the UK? It is very hard, very very hard to get one unless you fit into one of the categories for visas, just wanting to move to the UK is not enough, not even close. It is every bit as hard, if not harder, to get a visa to live in the UK as it is to get one to live in the USA.
This is my opinion; it is not legal advice, nor the view of my employer, and it may change tomorrow.