The address associated with this number is:
2029 Century Park E #1120
Los Angeles, CA 90036

It's "supposed" to be FLM Research Co.
A Market Research company doing business with
Western Union
MoneyGram
Pizza Hut
Samsung
Red Bull
etc........

I EVEN received a "cashier's check" from them for over $2,800.00, which of course was bogus.

On top of that, their website was registered 1 month and 1 day ago.
IP Address
72.47.244.92

There will be no return address on anything...and the phone number on the letter is associated with several scams per 800 notes, etc.  (469-209-5908)

I have filed a complaint with the FTC.

BE CAREFUL!!