1. A graphical user interface, comprising: a service point identifier; and a chart that, in response to a selection of the service point identifier, displays: a first usage value for a resource delivered to a service point associated with the service point identifier, the first usage value associated with an invoice from an active account; and a second usage value for the resource delivered to the service point, the second usage value associated with an invoice from an expired account, the second usage value measured at least in part by at least one meter associated with a meter identifier.