I get the impression (sometimes) that they don't bother to answer texts if the lady is already booked for the evening and possibly the next, or even the foreseeable. (Might depend on who's doing the answering on any given day too.) Given how unseasonably warm it has been this September, it could also be people are more likely to 'get a bit more done' before it turns cold. Plus Haru was very well reviewed last time she was here so that would mean more demand (they should send an extra girl over whenever a star like her visits); I couldn't book her even the day before she was due to leave.