Updating my post of July 19th…
If this is indeed the "United Breast Cancer Foundation" (and not some spoofer), they're actually rated one of the worst charities out there, so don't feel bad for blocking their calls.
See: http://www.tampabay.com/americas-worst-charit ... ncer-foundation

unwanted calls at 8:30-9:00pm

I have been receiving 8-10 calls per day for several weeks now.  When I do pick up they are very argumentative and very demanding of a contribution.  They call for my husband and lately have said they wanted to thank him for his contribution.  Hard to believe he has contributed since he's been dead for 2 years.  When I said that the lady had just called a few minutes prior, she flatly denied calling, but I've talked with her several times.  When I asked her to stop calling, she hung up on me.

Just called my landline -- I have that phone set up not to answer or even ring, but I get a notice posted on my television screen when a call comes in (I only keep a landline to use when I misplace my cell -- yes, I'm that old).  Anyway, I always come here whenever I get a call from a number I don't recognize.  And 99% of the time, I find the number has been reported here.

a robocall - it says " we are not available now, leave your name & number & we will return your call".
How stupid are these crooks - do they think anyone would leave their name & phone no. for them to call back?