Mahindra And Mahindra — xuv 500 body rusting issue

Dear sir,
My xuv got full body rsuting issue and i visited the service center and after dismentaling of that vehicle i found that so mant rusted areas like both side of running board, core, doors, bonet, and under body also. Previousley i worked the same body paint but this is the second time. They told me to work with cutting and painting by replacing the parts but i don't want to work with cutting because one of my previous vehicle got same issue after spending 2.20 lakh of money at the same condition of that vehicle. I demand to replace the body shell but they are saying that they can't do that. I want body shell replacement. Kindly contact me and resolve the issue.
Thanks
Soumya ranjan behera