Peoplepc Failed Cancellation AGAIN San Francisco California

Here it is again. I opened my credit card bill and peoplepc has billed me again for a service that I do not have. I have fought and fought to get this account closed. one that I never opened with them in the first place. I was a subscriber with Highstream. After several years with them, they turned over their accounts to peoplepc when they got out of the dial-up business. Peoplepc was supposed to send the Highstream clients an installation disk - but never did until after the service already started. I had prepaid for Highstream, and peoplepc was to use the credit from the account for the remaining term of service. I cancelled the service with peoplepc at the start (July 07) since no disk had been sent, and I decided that wireless was the way to go for my business. I have yet to get this resolved and the company continues to steal the cash from my account. This is robbery!
Anyone have suggestions to get this resolved? Thanks!

Dave
Meridian, Idaho
U.S.A.