Sorry to hear that mate. You know I recommended her in a positive review. I've been to that place twice in the space of 10 days (1 visit to each of the two girls). Both times I only waited a few minutes (and that's because I turned up early). That's absolutely no way to treat their customers leaving them waiting and ignoring calls.
As for the area. I've been to a lot worse areas in pursuit of a punt! 
It is not your fault LL.
Those who have punted a numerous number of VFM EE will know the need for plan B.
This situation is not uncommon as in the premises like this it is always be “First come first served” principle and repeated business is often not in their card ...
Even if you have made an appointment by phone if there is another punter arrives in front of the door earlier than you than they will let them in. If you arrive a few minutes late and they know they will be with another punter for an hour or so then often they will stop answering your phone/message. I think the reason for this is because they know that if they answer the phone, the punter who is currently waiting outside will get very angry.
I agree that the prossie should not be like this considering that a punter might have travelled for 90 minutes to the address.
I start to understand from the flip site from the prossie point of view
- There are numerous number of punters do not turn up in their appointment. If they do turn up some come late 30 minute or more. For the premise like this which rely on a big turn over, it will mean a big loss for them.
- Also keep in mind, you are dealing with prossies who never learn about the benefit of repeated business. They could easily move to other areas when the business is low …
