Chevrolet Utility Bakkie leaks

I purchased a new chevrolet utility bakkie in October 2013. Over the past year I have returned it 7 times due to a consistent leak in the cabin. Despite various excuses of a drainage problem, aircon fault and sealant malfunction - the issue has STILL NOT been resolved. Because of this water there is now rust on the pedals and a damp/rotting smell in the cabin. After each \repair/service"I have been promised this will be the \""last time\"" I have to be bring my vehicle in. On further pressing the manager I was told this is a common concern with this particular bakkie. Therefore I would STRONGLY suggest that due to my experience and bad service"