We are a roofing company and put on a roof for a customer that was being covered by his insurance agency. This was all under contract. During the process of the sub contractors putting on the roof, he asked our Project manager and the roofing crew to complete another area of the roof. He misread his coverage by the insurance company and asked us, verbally, to do more than was going to be covered. So now he is refusing to pay the remaining $5900 for the additional section. As the new office manager, I want to know what the best approach is for me to take.