Kept getting 3 or so calls a day from a auto dialer.  Then the person would ask for me by name.  I asked them to stop calling and they were very rude. Calls continued.  I then called and and very nicely explained that they were calling my cell phone number and would they mind stopping as it bills me each time I answer them.  They seemed to believe that it really was my cell phone and apologized and removed me from the call list.  I hate being dishonest about it and saying it was my cell, but at least it stopped the calls.