My partner and I provide application consulting services. We are both Duke MBA graduates. My partner also has undergraduate degree in liberal arts from Princeton University, which comes in handy with essay editing. We don't write essays, letters of recommendations, etc., for the applicants because they won't reflect the "true and unique" you and that can be detrimental to your candidacy. If you would like to know more and/or schedule a call to get a feel for how we can be of any assistance, please email ckwu16[在] yahoo.com. Thank you and best of luck!
First of all, an email and/or a conversation doesn't cost you anything. Secondly, if you really want to be sure, you have all the rights to ask for a copy of diploma, transcript, whatever. Caution is important, but I personally believe "innocent until proven otherwise". It's a much happier world that way.