Dek Roofing

I purchased a home in 2009 that Dek re-roof 2 years earlier. We purchase the home in the dry season. Once the rainy season started, we started having leaks. ( in 5 different areas of the home). DEK came out when I call to repair the roof - unfortunately it did not resolve the leak in 2 of the 5 rooms. Today, i've called DEK multiple times sine 2009 to repair the same areas, but I still have leaks in the same 2 rooms. While they are responsive to calls and send out repair personnel, they cannot seem to fix the leak in the two rooms - now have a third and I have no confidence that they will be able to repair that. I will update if i'm wrong.