Abstract: This invention provides for a web based service that allows shipping service users to track the status of delivery of their shipments with multiple carriers and determine shipments that are delivered late relative to the service levels committed by the carriers based on user supplied information. Further, the shipped-shipment monitoring system enables identification of the late shipments and the ones eligible for refunds and allows for refund claims to be processed with the respective carriers. The system further enables tracking of the refunds to ensure proper credits are passed on by the carriers to the users of the system. The portal based web service allows the users to access reports on various events relating to their shipping services in order to manage pricing, revenue-sharing and costing of such services. The methodology and system allows for communication between the users, carriers and authorized third parties and/or administrators who are connected to the system.