This is a 3rd party telemarketing company trying to "qualify you" for lower credit card rates. It seems like it's proactive Debt Counseling or something of that nature. I actually answered and played along and the guy was rude and refused to divulge any company info so it was obviously a scam!
OMG!!!!! definitely cancel the cc RIGHT NOW. WHY would you give out your credit card number to anyone!!! especially to companies you know nothing about omg. they're probably already using it.
Just got the call, like all of you, didn't answer... googled it ~ got your postings. Thanks everyone, you showed me how important it was to post this info!