My experience is the exact opposite, room number on arrival (for the reasons set out above).
Do you actually call the room to check they are there?
You make fair points MrB, but I have been left waiting for the phone calls to be answered many times, and actually one which was a 400 mile round trip. The Plan B in that case was awful so I don't do them anymore.
In my eyes there has to be some trust between both parties
I tend to only pick well rated girls, and I don't go to hotels much for incalls, hence my asking the question a few days back, mostly parlours and outcalls to my hotel for me.
If I felt that I was going to be messed around, I would check the room number given, but if a girl is happy for me to do that then that's enough for me.
The last touring escort I saw gave me her serviced apartment number the day before.
BTW I have excellent AW feedback, being doing this many years and I'm not a timewaster
