Revenue management systems and methods with enhanced rollover

A method of managing resources in a revenue management system of telecommunications network, the method comprising:

• performing by executing a revenue capture module in a revenue management system a rollover of resources for a subscriber account at an end of a first billing cycle, the rollover increasing a balance for the subscriber account in a second billing cycle, wherein the resources comprise free minutes for the subscriber account;
• determining with the revenue capture module of the revenue management system after the first billing cycle and after performing the rollover of the resources whether delayed events related to the resources have occurred during a predefined delayed billing period after the first billing cycle and after performing the rollover;
• and
• in response to determining delayed events related to the resources have occurred during the predefined delay period after performing the rollover, recalculating with the revenue capture module of the revenue management system the rollover of the resources for the subscriber account in the second billing cycle, wherein recalculating the rollover of the resource for the subscriber account in the second billing cycle decreases the balance for the subscriber account in the second billing cycle based on the delayed events related to the resource that occurred during the predefined delayed billing period.