They consistently call and once picked up and they said my name, then they hung up...picked up, again, tonight and saying how they would like another donation...explained i told them i am giving locally...they say, well, it's there service providing for them..asked were they in Mich., yes, and asked for website info, gave me it...but, if you want to contact them it's Knoxville, Tenn.
If you have Comcast for your phone company you can get "call screening" --dial *60 and add up to 12 numbers to your list. I don't know if it's free or not, but I added this number. They'll get a polite message that I'm not taking any calls.
You might want to research telephones that have a block number feature. We bought one from Best Buy. We can block up to 20 numbers. We can also block up to 20 more numbers on AT&T's website, because they are our phone service provider. Hope this helps ;-)
The caller is Cancer Support Services. According to Charity Navigator they raise about seven million dollars a year of which only 24% goes to program expenses and 69% goes for fund raising. Not a worthwhile organization.