You need to check the
Captain69 site. It is a UK based escort review site but covers Eastern Europe escorts including Zuzana.
I'm not a member anymore but as far as I recall Zuzana can provide what it says. A number of it's staff work in London for London based agencies on occasion at vastly increased rates.
It is not unusual for Eastern European agencies to send girls to Western European cities on tours, at a significantly lower rate than girls available through the local agencies.