The thing that most people find suspicious is that when you have been scouted, and then phoned up by one of these services, if you do not have any recent professional photos of yourself, you are booked into a photoshoot, usually with 'The Lounge' or 'The Light Room'.
You are then told that the management will pay for the photoshoot. However, you have to pay for the 'copyright' of your photos, so that they belong to only you. The copyright of a photo is apparently £70 upwards, but they tell you the good news is, you only have to get 1 photo, and they can only host up to 3 on their site anyway. Everyone (I imagine) knows that to get into the modelling industry you shouldn't have to pay a thing. If you've got the right look, people will be willing to fund you, confident that you'll earn the money back in good time. But you're paying for the copyright, so that's ok, right? Honestly, no.
From my experience Vanity Management were quite evasive when I came to ask them what I would have to pay for the photos. When I first asked, I was told 'we pay around £190 to allow you to have a professional photoshoot'. So I dropped the subject. When they phoned me again to confirm I was going the next day, I asked again. This is when I was told the ridiculous price for the photos. 'But it's for the copyright'! they kept repeating.
So that's all fair enough. If you've got the money to waste on 'copyright', then that's ok. Besides, you only have to buy 1 photo if you want. You think.
After being at the photoshoot, you'll be asked how many of the photos you'll want to buy. But suddenly, you're greatly pressured into buying around 15 of them. The reasoning behind this? The more you buy, the better value they become. So it makes sense to buy 7 for £300 when 3 is £210, you're nearly paying that anyway. Obviously this is just a way for the money-grabbers to squeeze every last penny out of you. Should you decline from buying in bulk, you'll find the staff suddenly become very rude! Interesting...