wanted to lower my interest rate on credit card said i was valued customer...press 6 to speak with live agent as opposed to a dead one? anyway, asked to be put on do not call list and "Stephanie" hung quite loudly in my ear. When you call the number it's set up to go directly to voicemail and the mail box is full...imagine that!

I reported this to the FCC complaint section which is separate from the Do Not Call Registry.  Coogle FCC Telephone Complaint.  They take this seriously and do follow up.  Register your complaint. There is power in numbers

I am also on the DNC list, but every time I try to get some info to get them stopped, they hang up.

This time, I played along.  The automated message said they were from "Credit Card Services".  When I spoke to a representative, he asked if I wanted to lower my credit card rate.  I told him I did.  He asked if I had over $4000 in credit card debt, I told him I did. (even though I have no credit card debt.)  I was trying to get to the point where he would ask me personal information so I could question him back.  

But then the curious question happened:  "Are you over 70 years old?"
I replied no, thinking a credit card company would be interested in younger people.  With that, he hung up.  

It concerns me that they are targeting older people exclusively.  My grandparents would probably fall for this-

Received this call 2 days in a row.  Yesterday i pressed one to talk to somebody, told them I'm on the Do Not Call list and they promptly hung-up.

Today, i pressed one again, when I inquired as to their company name they promptly hung up again.

Very dishonest to say the least.  Not sure what action I can take with no information.

I don't answer calls from numbers I don't know, I am also on the "Do Not Call' list.

File a complaint with the FCC Online here:  http://esupport.fcc.gov/complaints.htm  These people should be shut down because they use automated machines and do not allow you to tell them to stop.  Their mailbox is "full."