Abstract: The present invention relates to a method, an intermediate service providing entity and a computer program for managing a distribution list of designated customers. The distribution list includes at least one designated customer, designated by a supplier of products and/or services. The method is realized by an intermediate service providing entity situated in a network. The intermediate service providing entity is in communication with the supplier and the designated customers. The method comprises the steps of: Receiving a re-distributable offer from the supplier. Distributing the re-distributable offer to the at least one designated customer of the distribution list, wherein the designated customer, on its own motion, instructs the intermediate service providing entity to distribute the offer to the at least one pending customer. Monitoring distribution of the offer from each designated customer to pending customers. Monitoring utilization of the offer among designated customers and pending customers.