I didn't answer. They left no message. Caller ID said "Colorado Springs, Colorado. "

Didn't Answer. No Message.  Called the number back & got a recording saying "The survey you are calling for is now finished...." with an offer to remove me from their calling list.

Missed call, Identified as from Colorado Springs, CO, returned call to find that the Survey was closed and if I wanted removed from the list press ?

Answered the phone, no answer back. They hung up.

Did not answer. No message.  Called back.  Received a "survey is closed" message.  Pressed 9 to be removed from list.