Missed on Kasia yesterday due to over confidence in my English and negotiation skills. Called her flatmate Natalia and explained to her that I wanted to see Kasia for an hour and then her for another hour at GBP 80 each, Natalia agreed to this (or so I thought)

. Got into the room and Kasia changed the tune, saying that it was £100 for each girl

. I was a bit upset and headed for the exits. They advertised a 3some for this amount, so really didn't see the difference (they did).
That said, Kasia is a cute, next door type of girl. Pale Polish blond (size 6-8) with a lovely ass and smallish tits. Spoke very little English. I can confirm that she appeared to be quite young and could believe that she was 19-20. If this sounds like your type of chick, you may want to give her a look.
Upon leaving I reconsidered and wanted to see her, but the maid said that she left (that's what I get for trying my negotiation skills - that said, you don't ask, you don't get). Oh well, there might be a next time as I visit Brick Lane quite a bit.