Numerous comments here on this in the past 18 months. Yes is the short answer.
£100ph used to be many punters' limit.
Any escort whose rates are more than this are charging more in one hour than the average UK worker gets paid in one day (give or take), even before tax.
Romanians are increasingly the ones, relative to the market, who are charging max £100ph.
As a growing number of punters are realising most of them provide a poor service, they are going elsewhere, which means higher demand and fees for non-Romanian escorts.
Prices seem to be higher in the SW than any other part of the country and I'm glad I don't live in the region because if I did I couldn't afford two punts a month.
All this does mean you have to really shop around and, for that, UKP is your friend.