I hope you have not given them any more of your money.
This group's M.O. is to tell you that they "love your film" or "have found distribution for it" or "really want it for the festival" etc., etc. Then, they tell you that in order to include your film in their screening or market or printed materials, you need to send them several hundred dollars. RIGHT AWAY. They need it quickly because they're working against a deadline or spots are filling up or this is a limited time offer. Then, if you hesitate, they will make you feel like an idiot for taking the time to think through the deal.
In the strictest, strictest sense, they are not a scam. They do give you essentially what they offer. If they say that for $300 they will accept you to their festival or give you your money back, that is true. If they say they will take your film to Cannes, AFM or MIFED for $2500, that is true. If they say they will put your poster art onto their festival one-sheet for $500, this is true. This is why people have been sued for calling them a scam. If you challenge them, they can turn around and say "hey, your film was in our festival" or "look at our one-sheet, there's your poster art."
So what's the problem? The problem is, you are paying a ridiculous fee for something that is either much less expensive at every other festival of any stature or paying for something that will deliver absolutely nothing to you.
For example, application fees at most festivals are around $50-$100 (even at the biggies like Sundance, Toronto and Telluride). And those festivals include your film title (and usually a brief description of your film) for FREE. When they accept your film, they promote it because that's how they make money, not off the poor filmmaker who just spent her life's savings to bring her labor of love to the screen, but off the film-loving public who don't have time to sift through the thousands of films and so counts on the screeners at the festivals to do it for them. If you're being asked to pay to have your film included in the program, then you are taking on the burden of the festival's operating costs. (At most festivals, this is called sponsorship and it's done by the likes of Tanqueray and Sony).
In your case, it may be technically true that they will take your film to Cannes or another of the markets and try to sell it. But charging you $2500 for the privilege IS NOT a distribution deal. At least not as people in film distribution know it. Once again, you are being asked to take on their operating expenses. A distribution deal is where someone comes to you and says "hey, I think your film is a winner, I'll give you $XXX for worldwide (or some other limited) rights." The way a sales company (like Miramax or New Line or any number of other, smaller but reputable companies) recoups that $XXX is by turning around and trying to sell it to distributors in various territories. The cummulative revenue should return what they paid you for the rights to sell it plus some money for expenses. What's left is profit. Smart sales companies know how much it costs them to make posters, duplicate prints for screenings and promote a film they just bought. Those are the expenses they have every time they go to a market and recouping those expenses should come from the money they make selling your film. NOT FROM THE MONEY YOU GIVE THEM TO DO SO! Tell them you want some money up front and that you won't pay them anything. See how quickly they try to turn it around on you and make you feel like you don't know the industry. Don't fall for it!
A last point. Like I said, this group technically gives you what they promise. But you have to look at the quality of what they give for your hard earned dollars. Here's an example: The poster at the LA version of their festival had poster art from the 15 or 20 filmmakers who paid the exorbitant fee to be included there. As far as I'm concerned, there is little to no value of having your poster shrunk down to smaller than half a postcard and put, without rhyme or reason, onto a poster full of other posters without any differentiation. The one part of the poster I can tell you stood out? The name of the festival. What paying filmmakers essentially did was cover the costs of having those posters printed without any benefit for doing so.
I'm a filmmaker just like you. I completely understand the temptation to think that anything that will get your film out there is a good thing. But I believe this company is making their money on the backs of the people least able to bear the burden, the filmmaker. They may not "technically" be a scam, but read carefully everything you can about these guys and draw your own conclusions. (Some advice on how to find information on them, don't search under ITN, search for the festival and you'll find some eye-opening accounts).
Sorry for the rant, I just despise sleazy operators. I really wish you the best of luck with your film and hope that you find great success with this project and all your future ones!
Hope you enjoy your time here.. everyone is friendly and very helpful. 
