Repaired disconnected supply duct coming off of supply Plenum inside of attic. This may have been disconnected when the cable guy was up in the attic and stepped on it or the tension overtime from it being too short pulled it off. Client had mention that energy bill Was a lot higher than usual and this can definitely be the reason why due to all the air leakage occurring in the attic the ductwork is very old and is falling apart and is not sealed in multiple areas. Will be scheduling for a comfort adviser to return to go over ducting options to increase the efficiency and Airflow The System.