Called me 2 weeks ago and I asked to be taken off call list. He Called today, said he is with windows and my computer is being looked at by hackers to hack my IP address. Told him to send it to me in writing and to remove me from his calling list and to not call me again. He started talking over me and yelling stating he would "call me, call me and call me". And he did after I hung up on him. I blocked his phone number from my phone.
I too keep receiving multiple calls from this number with no messages during hours when I'm working. I'm also registered on the Do No Call List. Sounds like a jerk based on the reports from people who have actually answered.