Minnesota’s Attorney General is suing Louisiana-based CenturyLink for over-billing customers for internet and cable service. Swanson says “on the back end, the company would then often refuse to honor the prices that were quoted to consumers that caught the discrepancies on their monthly bills.” Swanson says the goals of the lawsuit are to get CenturyLink to change it practices and to get people their money back for overcharges. CenturyLink has not commented on the suit.