Dial-up Internet Overage Calculations: The monthly dial-up Internet service plan is billed one month in advance. However, overage charges on our 50-hour limited dial-up plan, are billed on the next bill statement sent after the overage is accrued. For example, the 50-hour plan for June is billed on the June statement. But, if a 50-hour plan customer uses 52 hours in the time period from May 21 through June 20, they are billed for those 2 hours over on the July bill statement.