[Resolved]  General Motors — Rusting of car doors

I bought Chevrolet Aveo in 2006 Nov and now I am facing the problem of all 4 doors getting rusted. When I contacted the dealer (Kropex India) located on Hosur road they directed to GM and GM directs me to Kropex and finally they came up with a great suggestion that if I bear the cost of the parts which is 46K they would bear the cost of paiting which is 16K and rectify my problem which I way too much. I am not sure how do I go about taking this forward hence I am submitting it here.