I've received numerous calls from this "business", up to three times a day, for the last two weeks. No one is ever on the other end, not even a recorded message. It IS harassment, as a previous poster said. I am upset enough to look for avenues to report them. Calling the number back only gets me a recorded message saying the number is not in service.
They claimed that they have an issue with their dialer system, it does not connect you to an agent; however it does show that you have a working number, so you are put back in the list. Call them and ask them to remove you from their dialer.