I didn't answer, but when I called back it said WCA & that they would call me back. I pressed option "1" to opt out & it asked if I was sure, saying that their "Loyal Subscribers" are entered to win a $100 prize give away per day & iPods, etc. Clearly a spam caller.
I agree, clearly a spam - I happened to answer the phone and quickly hung up when I realized it was a computer canned message from some company called WCA