Update: 4-17-14.
I received a voicemail from Cox with a phone number but no name. I called that number and somehow I got connected to their collections department. The person I spoke to said the computer does show the February double payment so he doesn't understand why I am having problems resolving this. He will have billing supervisor to call me back. That was a week ago. I guess they figure if they ignore me I would just give up but they are not thinking about the money they weill lose when I cancel their service. Also, when people read this review and decide not to utilize Cox service.