Yes, I got a request for a £25 deposit a couple of weeks ago from a new girl on AW without feedback. Ignored it of course.
Strange, her profile has now disappeared!!
Obviously a scam - set up a new profile with some tasty pics, ask for a £25 deposit - I bet that pulls quite a few punters in (well there are idiots who send money to Nigeria in order to release enormous locked away millions!)
Then take the money and run.