So yesterday, 6/8/17, I received 2 of these calls within 2 1/2 hrs of each other.  Was not home.  No message but I saw it on my CID.  Immediately punched their # in google and my favorite 800notes popped up with responses.  As Sandy stated on Jan 5, the woman started something about a sales pitch for a vacation that I had responded to previously.  I cut her off and told her I googled the number, and take me off the list and that it was a scam.  She immediately went into the dialog about someone spoke to me on April 19 (forewarned is forearmed.....thank you Sandy) and I said NO, I already know what you are going to say and NOW I am no longer going to be nice to you (and I was not).  I usually will be nice (but not to the foreigners).  BUT when they outright LIE and they KNOW they are I no longer feel a compunction to be nice.