It's called 'caller id spoofing'. The people calling you can make any phone number show up on your caller id. They're making a number show up that charges you money if you call it and press a certain key.
At the same time they've disguised the messages on their pay by phone system as surveys. Those messages normally tell you what you're buying and how much it costs.
Check your bill for unwanted charges if you called this number back.
Got a call from this number. Survey to rate performance of Dem Party regarding debt crisis. 1=worst, 5=best. They continue to ask the same question over and over unitl you finally enter a "1" then they thank you and hang up.
I got a msg about participating in a survey and 'winning a two day trip to the bahamas or something like that'. I called the number back to see if I can opt out. They say to press 2 to get off the list but the message just keeps repeating with no acknowledgement that my request to opt out was acknowledged. So I saved the message and phone number. if they call again, I'll file a complaint with the DO NOT CALL registry.