For example, some web sites have over 20.000 profiles, however this is not a reason to find any scam inside this Agency, it only gives you an impression how many profiles you can find on the 'entire' web.
So, the chance is present, but if you prepare yourself in a proper way, the risk of being scammed can be reduced to almost zero.
But if this and all our other information is not enough for you to feel yourself 'well prepared' and certain then you always can decide to provide yourself with more information, tools or services.
It's you who has to make the choices, but making the wrong choice can cost you a lot of money.
Try to find out if her letters to you are very personal and don't look like standard generated letters.
Persons who are just trying to get your money are using pre-defined letters, just because they don't have the time to write each person in a personal way.
Better be sure than sorry, so don't leave right now, we are not finished yet.