Who called from 3135564633

Showed up on Caller ID on June 22, 2012. No message (as usual). (Just to log the unknown call for tracking purposes.)

I missed a call from (313)556-4633 so I called back , a Man answered & said he was with purple Heart and on July 12th 2012 he would be in my area to pick up donations
NO BAD CALL JUST PURPLE HEART

I Got this call it's purple heart
DON'T FREAK OUT

The man said " he was from purple heart,    I told him to take me off his call list.  He wanted a street name,  I said no!  I would not give info to him.    He started to get real loud at me and I hung up,   The guy called back and I would not answer.    Not sure if this really is purple heart.     Why a street name?  when my problem is with the phone calls.   And what gives him the right to yell at me?