These a$$holes called our home six (6) times TODAY and it's been going on for months!!!  The funny thing is, they've been locked out by our call blocker so our phone never rings ... we just see they've called whenever we get around to clearing out our the caller I.D. listings from the phone.  This is the dumbest and most unproductive waste of time imaginable .... whatever benefit they can possibly get out of wasting everyone's time, including their own, is a gold-plated mystery.