This concern originated from the following website: http://www.turkishairlinessweepstakes.com/
It offers a sweepstakes for enrolled college students to enter for a chance to win free tickets through Turkish Airlines.
After entry, I received an e-mail from 'firstname.lastname@example.org' stating that I had won. I was skeptical because the e-mail asked for a W-9 form and other personal information. Amazingly, however, the official Turkish Airlines Facebook and Twitter pages advertised this sweepstakes. I began to think the sweepstakes was real, but I was not sure if the e-mail itself was a fake (impersonating the actual sweepstakes company).
The turkishairlinessweepstakes.com "Official Rules" name "SweepstakesPros" as the overseeing company (running the sweepstakes). SweepstakesPros has an identical website with Site Systems and Promotion Trust, which all share a physical address. [continued below]....
..... (Also confer: sweepstakespros.com; sitesystems.com; promotrust.com)
The e-mail I received included the same phone number that actually corresponds to the SweepstakesPros website. So I deduced the following: (1) Turkish Airlines' official pages point to "turkishairlinessweepstakes.com"; (2) This officially-endorsed website says that the sweepstakes is run by SweepstakesPros; (3) The official number (from the SweepstakesPros website) is the same one I received in the e-mail, so theoretically I was directed to contact the same people who Turkish Airlines endorsed.
I called SweepstakesPros and everything was re-iterated to me. I then sought to confer with Turkish Airlines themselves, to make sure that everything was alright. To my astonishment, no one I have spoken to in Turkish Airlines has any knowledge about this sweepstakes! I have contacted Turkish Airlines in all of their (four) U.S. Sales offices, on their website, and through the official Facebook page.
Naturally, when I received a response from the Turkish Airlines official Facebook page, the representative said that he/she had checked with the appropriate persons, and that no one at Turkish Airlines knew of this sweepstakes. This, of course, begged the question, why was the official page sending out links to this (probably fake) sweepstakes? I have yet to receive a response, I am assuming that whomever is in charge of Turkish Airlines Facebook simply saw the sweepstakes webpage (turkishairlinessweepstakes.com) and assumed it was legitimate and then advertised it.
In summation: (1) Turkish Airlines official social media sources are endorsing the above sweepstakes; (2) when I contact the affiliated sweepstakes company they ask for personal financial information; (3) When I then contact Turkish Airlines directly, no one knows anything at all about this sweepstakes.