We hired a roofing company to do our roof. The contract states that Ice Watershield would be installed 6 foot up the roof. They only did 3 foot up the roof. We contacted them and addressed this in the middle of the project when we noticed. They did nothing and completed the rest of the project. We only paid half the money and still have half. What options do we have? The owner said we don't need to be worried but we are very unhappy.