I guess the Chinese places get raided as to check there is nobody working there who has been trafficked which is a good thing.
I know of one in Glasgow that got raided, and it soon became word of mouth, HE on the cards, and sex for the right amount of money
Be Healthy, Glasgow, I went there my self a few times, last visit, and a lovely attractive Chinese female. Wanted £200 originally for sex, I began haggling, and eventually got down to £120
A few weeks later it was in the Daily Record, and soon closed it doors, but it looks like he just moved to new premises, ie flats