Call numerous times during the day and they never leave a message. I'm on the do not call list they better stop!

I have now gotten a call from this number two days in a row, they do not leave a message and when I try to call it back I just get a busy signal. I too am on the DO NOT CALL register, but it doesn't seem to matter to some companies.

Yes, who ever they are (623-939-3568), they called me all day long and when I finally answered, they only asked for my last name.  When I asked what first name were they looking for, they hung up.  I called  back and it just rings and rings.  Stupid people.

Whoever this is, they keep calling. Today they have called me 7 times. They call every hour to hour and a half, and it started around 10am this morning. I am getting very irritated, people need to take a hint that if you don't answer the first 2 or 3 times they call, you are wasting your time!

Do not know who this is and never leaves message!