Some man from this number called about updating the Windows operating system on my computer.  When I asked him to take our number off their call list he told me it was impossible.  I asked him to repeat to me who he was and he ignored me the first time and then told me he couldn't disclose the information the second time I asked.  He finally hung up on me when I let him know I planned on contacting authorities to file harassment charges.  When I called the number back, there was one option - to remove myself from the call list.  What a jerk!