The document proposes a new social network-based scheme to help telecom operators prevent churn by providing value-added services. The proposed scheme introduces the concept of user groups, where a group owner can share subscribed services with group members at a discount, providing incentives for both users and service creators. This encourages more service usage and helps operators identify communities and target new service proposals accordingly. The scheme is intended to provide a more flexible charging mechanism for value-added services compared to existing straight-forward monthly subscription models.