The FCC said it received over 1,000 complaints from customers, who said Comcast charged them for premium channels, cable boxes, DVRs or other products that they never ordered. In many cases, the FCC said, customers expressly told Comcast that they didn't want the add-on options, but they were charged anyway. Complaints also describe how customers spent "significant time and energy to attempt to remove the unauthorized charges" and get refunds, the commission said. The complaints spurred the FCC to launch an investigation nearly two years ago. Today's settlement marks the conclusion of the probe. Under the five-year compliance plan, Comcast must begin sending customers special notifications every time a new charge or service is added to their bill. The company also has to add a way for customers to easily "block the addition of new services or equipment to their accounts," according to an FCC press release.