i just got a call from them too. and i did press 9 in hopes i could tell someone where to go. sure enough a burly sounding man answered and hung up immediately after i asked for his companies information and how they got my number. i also have never owned or signed up for a credit card.
HI, this is Rachel from Card Holder Services. There are currently no problems with your account. Act fast to get a lower interest rate. Press 9 to speak with a live representative.
You can't call the number back because it doesn't exist. Hm.
Yup - just got hit with this one. Thanks for solving the "mystery" of what it was about, but why on earth would anyone call the number back? Go to reputable CCard assistance - nonprofit only - for real help.