I received a phone call, with a friendly woman’s voice who at the time I thought was a new acquaintance of mine that I was expecting a call from. She said "Hello, oh, sorry, can you hear me". I believed it was my friend and said "yes, I can" then she started in on talking about how she represented a travel company that was offering free 3 night stays. At that point I ended the call, and remembered hearing of scammers using that technique. I felt it was necessary to report this incidence in case it turns out to be one of those scams.