A system and method for telecommunications operators to enable group based dynamic policy controls for both pre-paid and post-paid subscribers, who are typically not managed in an Online Charging System (OCS), but rather in an Charging System or a Billing System. Examples of policy controls that may be enabled by this invention include tracking spending for post-paid subscribers, managing subscriber usage across fixed-line and mobile networks, and so on. This is achieved by introducing a new component called the Enhanced Charging System (ECS) and creating a new reference point and interface between the Policy Management System and the ECS.