Tank Filler Pipe And Cap problems of the 2004 Dodge Ram 1500

Unable to fill gas tank because of defect in gas tank. . It appears that a roll over safety item, designed to cut off fuel from pouring out of the filler pipe, malfunctioned and caused the fuel pipe to be blocked at the tank. This is an expensive repair, as the gas tank, fuel pump and sending unit need to be replaced, I called Chrysler and lodged a complaint, and was told there are no recalls or service bulletins for this problem.