This case study details the collaboration between SmartestEnergy and EXL to enhance billing automation and improve working capital through on-time revenue and billing improvements. SmartestEnergy, a rapidly growing energy supplier in the UK, faced challenges in optimizing its billing processes to match a 30% annual growth rate. The EXL team, equipped with utility industry expertise, conducted a thorough analysis of SmartestEnergy's billing operations, identifying key issues that hindered timely billing. They implemented solutions to automate billing processes, reduce non-value-added exceptions, and improve overall efficiency. The study outlines the specific actions taken, including the establishment of new system flags and the creation of a hyperautomation center of excellence. As a result of these efforts, significant improvements were observed, including a 96% increase in auto-billing and a 50% reduction in failure demand, demonstrating the effectiveness of the implemented strategies.