Thanks for your first post and review - after 3 years.

But you could have saved yourself some time if you'd done a bit of research and used some nous.
Firstly, read the profile. By the way it is written and the fact she is charging £180ph, this girl is clearly up her own arse and thinks she is superior to punters. This indicates she won't think twice about flaking on them.
Secondly, read the reviews on good old UKP. This confirms the above and shows she's got form for no shows.
Thirdly, if you are going to book an SP a day or more in advance, then confirm on the day, stating if you don't hear back by a certain time then you will have to assume she can no longer make the booking.
If you book on the day, then seek confirmation an hour before and indeed many escorts require this.
Personally, if you'd texted her and there was no reply, I would have said that and not travelled when I didn't hear back.
I note she didn't even try to deny she'd flaked on you. Blamed a 'personal emergency'.

a) Either way, she should have offered you a heavy discount but didn't even contact you after the event
b) that excuse is bollocks anyway - she could and should have texted whatever the circumstances and she forgot, couldn't be bothered or bumped you for another punter.