Poor warranty service.

We own a Kodak Z730 and have had problems with the lens. After about 6 months the lens jammed and had to go back on warranty repair at United Camera & Binocular repair which is Kodak's repair center. It took almost 6 weeks (United said 2 weeks)to get the camera repaired. About 6 weeks later the lens detached from the camera body while taking pictures and now United and Kodak will not repair or replace the camera unless I pay for it. United is claiming we did the damage to the lens and will not take responsibility for a poor repair or the fact that the Kodak cameras have a lens problem.