Damn Nigeria

got call. unknown number to me. left no message.

Another Scam wanting Credit Card information because "Gongratulations, you have won a Free Vacation."
It's a Robo Dialer, just block them as they won't remove you from the list.
See SEOscam.net  

Received a call from this #, and they didn't leave a message.  I called the number back & got a message "this mailbox is full and can't accept any more messages'.  Hmmmmm......

no msg