There are a few problems here at Charlie's.
First, this is not a Gentlemen's club. This a hostess bar. The girls chat with you and drink Champagne at minimum 165 GBP plus 50 GBP per hour for the girl.
The bar tender will 'accidentally' forget the price of bottles and services in order to round up about 50-100 GBP on the final total. She will also then push for a big tip. Push, push, push.
Your hostess will be attractive. There are several. However, and in the most unfortunate manner possible, they will sit across from you in the coldest least engaging manner possible. Their hope here is that their looks alone will captivate you enough for to disregard the several hundred GBP tab at the end in which you had a conversation the likes of which you could have had with the check out lady at Sainsbury's local.
Don't waste your time. Or your money.
Either stay home or go to a strip club. For the money they charge one should expect more...A lot more.