A system and method is described for managing subscriptions between a consumer mobile phone, merchant server, billing server and carrier server. A charge-info method is used for the merchant server to retrieve charge elements from the billing server for constructing a user interface for the consumer mobile phone. An opt-in method is used to confirm a consumer's opt-in for a subscription. A remind-charge method is used to remind the consumer of an upcoming charge on the subscription. A charge method allows the merchant server to charge a user account on a carrier server via the billing server. A cancel method is used for the consumer to cancel the subscription.