Just got a call from 702-847-5463.  They left no message so I called it back.  Some stupid guy with a speech problem that made him sound like he had shxxxt in his mouth answered - decided to look me up by the telephone number I called from.  Asked me if my name was correct - I said why - who are you and why are you calling.  He said his first name only and then stated "for personal business - are you xxxxx?"  So I said yes, then he said "for security purposes I need the last 4 of your SS#"  Seriously, with all the identity theft in the world today do you really think I am going to give some a-hole I don't even know my personal info.  Then I asked him what company he was with and he said GMAC.  I do not have a loan or any outstanding credit with GMAC!  Then I told him I would not give him any SS# information - and he said he already had that information and that I had to verify it with him for security purposes.  I told him I would not give him any information and hung up on him.  What a do***e bag!  If I have any creditor issues they are required, by law, to mail me documents - I have nothing with GMAC so what is this crap all about?