This number appears on our caller ID everyday.  Apparently, they are calling each day while we are at work and never leave a message.  We received two calls within 30 minutes from this number on Labor Day.  They indicated they were calling from the National Cancer Center.  I told them to quit calling us that we were not interested in making a donation.  I explained that we were receiving calls from their number everyday and that we did not appreciate it after they had been told not to call.  He stated that he could not do that and hung up on me.

They are still doing the same to us (as of 8 Jun 2011) as did to Kelli months ago. Sometimes they call us several times on a single day. A couple of times, when I picked up the phone, no one answered and then the line was disconnected. The last time they called us was at 8:23pm on Jun 8, 2011. I told the guy not to call us again without listening to his explanation.

I don't know who this people are and don't care.  It's every day all day.  I did answer once and they simply stated it was a curosity call, really then stop call i'm not "feeling" the politeness.