Zara told me that she is leaving on 31st August. It's not clear if that is going to be her last day working, or if that's the day she leaves the country. She likes it here and plans to come back. So there should still be time if anyone wants to get a booking in with her.
Despite what her profile says about the green light, if you would like to see her and number is showing, drop the maid a WA. Since Zara relocated to Earl's Court the light is sporadic. All profile stuff is handled by her maid/agency. There can be some long delays with responses, my advice would be to contact from mid afternoon onwards, or arrange the day before as she accepts advance bookings, and make an appointment from around 2pm onwards which leaves time for her English classes. She works late into the evening, so there are plenty of options.
She is doing very well, some punter booked her for an entire weekend, maybe it was the OP during one of his longer encounters

The above may be superceded by what PLeisure has said as my info comes from earlier in the week, so perfectly possible that her plans have changed. No harm in reaching out, imo.
Can only join the chorus here. Zara is a great time. Even without the FF (for me), her DT and enthusiasm as well as her willingness to try different things in different places makes her one of the best overall experiences I have had with an SP. I am quite busy this week, or I may even have tried to squeeze one more in.