received a call from these so called "humans", when I answered, I said hello numerous times, no sound in the background at all.  After a few seconds of complete silence they hung up.  I called back and it was busy.  The last time I had encountered someone calling me I told them to not call anymore and they told me not to be so nasty.  I was not nasty, I simply stated not to call and to remove my number.  Again he stated the above, so I let it fly...  I no longer hear from them...