Ok Mr. SurfcityTom, why do you have to be so sarcastic? If you think the Progress Energy doesn't make mistakes on your bill then you are a fool. I just a credit to my account for 353$ last month. They said there was a mistake in the system and they were glad I brought it to their attention. They also said they probably would never have caught the mistake. So it can and does happen all the time. You probably have been overcharged at some point, but you most likely don't care because trust everyone to do what their supposed to do. Wake up Tom.