Called me everyday for a few days in a row. Finally got a person today when I answered. The lady stated that she was with a sweepstakes company out of Utah, and asked for a person I don't know.
When I told her that she had the wrong number she said that it was my number that had been selected, and that it was a sweepstakes for users of mastercard, visa, etc. Then she asked if I did in fact have one of those cards. That's when I told her I was not interested, and she said "Okay" and disconnected. Definitely seemed like a scam. I would've tried to stay on longer and get more info if I didn't have a 2 year old trying to destroy stuff in the other room...