I've received two phone messages from a guy in Vegas calling to confirm a vacation package reservation I never made. I'm inclined to ignore the call because I've checked all my credit cards and there are no unauthorized charges. I'm also on Equifax's credit watch program and there have been no alerts nor accounts opened in my name. I'm thinking if I get on the phone with the guy this would open the opportunity for him to sell me something or get me to make a commitment. Any suggestions?