Neither of these are confirmed bookings as you did not receive the address/postcode.
The fact you decided to travel to her area does not make it an appointment, it makes it your mistake.
I've met more than a few WGs who send a postcode that doesn't match their "location" in AW. I even did like you and made my way to the advertised area without the texted postcode, only to receive the postcode when I emerged from the Tube and I had to get back on it to go somewhere else, Earls Court instead of Old Street iirc.
Crappy comms, like so many WGs, but incomplete arrangement so not really a review.