calls saying lu lu asking for donations...for real

I receive calls, answer, and no one is on the line. I *69 and this donor service answers the number given, and gives hours of operation but no way to get back in touch with them. It lists too many associations to respond to, to get them from not calling you all the time.They must have a list from a to z. Any help in getting them to stop calling would be greatly appreciated.

This number has the same area code as my number so I picked up. I get some a$$hat speaking all ghetto asking me "whos 'dis?" I asked "Who is THIS!?" Then he proceeds to ask for my mom  - by her first name. (She passed away not to long ago) I hung the f- up in disgust.

Now I see the ID was "Not Available" (2 family members that have not available, but a 215 area code, threw me off guard.) It's some call center, slew of charities this number is connected to. Call the number back and you get this computer message of some twit yapping about who they have helped. I dont think they even used a company name.  

Just irked, these sons of b*tches are persistant!

Just called, didn't answer, went to VM - Left no message

Didn't answer. No message.