got a call from this number at 12:13 pm on 2/6/12.  i didn't pick up the call as the number was strangely displalyed on my phone screen as +2103440918.  calls on my phone never display that way.

RECEIVED CALL FROM THIS NUMBER ON MONDAY FEB  6 ABOUT 1 PM. THAT SAID CONGRATULATIONS YOU HAVE JUST WON $500 IN FREE VOUCHERS. I HUNG UP WITHOUT GETTING ANY MORE INFO.