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."

Called me at 10:25 am. My v-mail kicked in and recorded dead air for 8 seconds.

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!

Just a silent or hangup call.

i didn't answer the call.  It appeared they left a message, but when
I went to listen to my messages, there was nothing.  just a blank.

Received a call from this number this morning at 9:00 AM. No message was left. I am convinced it is the same spoofer robocall that calls about lowering interest rates or getting a better auto warranty crapola. This number is just one of many, many, many non-existent numbers they throw on the Caller ID to trick you into answering. Utilize an airhorn or whistle if you decide to call them back and get a "human".