This is what I know, not claiming to be facts but my knowledge post various SW's
Who is it that decides on their next location and flat/ house when they travel from city to city around the UK- It is a big network and most of the pimps know each other, exchange girls depending on their requirement, rent places to work from each other if they need one,
Asian pimps (Chinese, Thai etc) work in collaboration with each other meaning they have their set locations they work from and do not step into each other shoes as they are all part of a big organised syndicates.
Also when they decide to get into sex work, does someone pay for their flight to UK or do they cover that?- most of the Chinese, Thai get paid upfront in their countries for 3/6/12 months work and they just work and do not get paid, only they get money for food, wipes and other necessities.
Some girls come over, visa ticket all arranged by the syndicate but do not get paid upfront but work on a commission which is usually 60/40% 40 for the girl, they cannot quit unless all the expenses paid in both the cases.
They get driven around by the pimps and many times they dont know where they will be next.
Hope that's helpful.