Received phone call. Did not answer.

Not sure who is calling from this 1-800 number. They called six times repeatly. On one call I answered and my minutes were counting, however, no one was on the other line. I dialed the number only to hear an automated machine with a woman's voice speaking fast regarding "men and women" etc and to call back another 1-800 number and proceeded to hang up on me. Afterwards, I received a call from someone I know who never dialed my number. In addtion, minutes later, a friend received a missed call from a 1-800.