A utility may terminate electric or gas service, or both, in accordance with the provisions of this subtitle. However, the utility shall use its discretion in unusual circumstances, including a situation involving a master-metered building, and may not terminate service if it has or is presented with reasonable grounds to believe that termination will endanger human health, life, or safety. This subtitle contains minimum requirements, and a utility may expand upon these requirements so as to provide further protections for its customers, in a manner best suited to that utility's service area and other factors. Each utility shall provide its customers with a reasonable opportunity to contest the proposed termination in accordance with the provisions of this subtitle.