Looks like a scam to me, for a few reasons:

-Offer seems too good to be true
-Not mentioned anywhere on TK's website
-Not professionally done (hotmail email address)
-They happen to want email address and ticket number, the combination of which could be useful for stealing FF data or similar.


That said, I would recommend calling TK's LAX Sales Office (http://www.turkishairlines.com/en-in...e/sales-office) to find out. If this is a scam, then TK needs to know about it so that they can shut it down. If this isn't a scam, then you have your answer