Happens all the time boss:
www.esa.co.za/forum/thread.php
I've also learned that even the most beautiful WG around will pull these stunts. Apart from the gal in the above thread yet another stunning chick called me with some sad story about ex not paying maintenance, no place to stay etc.
I keep to the sage advice of offering to come for a 2hr booking at her rate plus a little extra depending.
If a wg tries to sidestep the booking offer and only want quick moola then I immediately know its some bullshit trying to get moola for drugs or for asshole boyfriends.