"My New Invention"

I have came up with a idea that was used in my daughters school project. It Turned out It got a lot of attention and everyone wanted one. A friend talked me into submitting it to Invention Technologies, I did and it was approved for in debt search and marketing. Does anyone know how legitimate these places are. This will cost me money that I don't really have right now. Does anyone know someone that dealt with these people before. Any feedback would be appreciated. Thanks

The very simple answer would be for you to patent and market it yourself. That way you avoid any kind of middleman. Once you have patented it yourself then its YOU that decide the terms of payment!