I contacted her a few years ago as well. Never really wanted to, but she kept contacting me with flirts on AW so thought I'd give it a go as she was cheap. She never mentioned a deposit, but she did expect me to bring her a bunch of flowers and a bottle of gin (might have been brandy) so she could drink during the session.
Told her where to go.
Had exactly the same experience with hothoneymummy who said they were sisters.