Got a call from a woman named Kim, calling for a company based in Utah, to be in a Visa Mastercard sweepstakes. She already knew my name, but the only information i gave her was my age,type of card I have, and was also asked about my hobbies. I did NOT give my credit card number or anything personal like that. She then went on to offer me free magazines and other things. After I declined, she said I'm still entered into the sweepstakes, the prizes being $25,000 or a Ford Mustang. So how bad of a scam is this, and am I in any kind of trouble aside from future calls ?