Arrived to the customers home and greeted them at the door. Explain today is repair an asked if had any questions before starting. Removed field pressure relief valve and installed new pressure relief valve. Pressurize system for leaks and then pulled into a deep vacuum. Waiting in factory charge and adjusted for lines sent length. Confirmed overall operation of the heat pump system and return system to service. *** customer states office said could setup payments*** couldn’t get anyone in office to confirm***