OK, GIVE ME YOUR CREDIT CARD NUMBER & I WILL GIVE YOU A FREE VACATION. IF ITS FREE WHAT DO YOU NEED THE c.c. FOR? As long as there are dumb people these calls will continue.
Called them back on another line - got an automated system - sounds like it's a vacation / timeshare telemarketer, possibly affiliated with RCI or Interval (or possibly a total scam). Tell them you don't have a major credit card. and they will immediately hang up on you.