Received call from 318-402-0437 on 12/17/2013 - no message and caller id listed "BREAST CANCER S"

Lady claiming to be confirming my address before mailing me something so i can contribute to a fund that helps pay for breast cancer treatments. While this is a worthy sounding cause i told her she can mail it but not to count on a contribution unless i determine the money is really helping breast cancer victims and not going " to solicitors like you." I hung up.

Caller ID read "Breast Cancer". They called twice, but I didn't answer either time & they left no message.

Called four times so far (2x on 3/31 and 1x on 4/1 and 4/2).  Blocked this number after first call.  "Breast Cancer S" shows on CID.  Think this is likely another scammer.

This is a summary of the phone call. This number called my home a few minutes ago. Because I do support Breast Cancer Research, I answered the call.
Someone  saying her name is Sarah asked to speak to me, I told her it was me,and she said," You are a hard person to get a hold of." ??? This number had not been on my phone before tonight. When I asked a question, she said she was in training and would have to get a supervisor to answer my question. I said I would donate when I get paid, she transferred me to someone else to get my address. This person wanted to know if I wanted to pay with Visa, MC, Bank Card, ect..
I told her no. I said I would donate when I get paid. They are suppose to send something to me. When I get the information, I will check further into this. Even though they talked nicely, they cut me short, and the last one hung up on me.