when my seat broke, they fixed under warrenty but installed the entire bracket seat up backwards so bac it went. Recently I noticed the seat belt was turned downward. I never noticed because I never use it. It marked up the rear fender in that area. Can those marks be polished out? Or touched up. It's my fault because I should have checked but they should have put that buckle ,echanism back where it belonged. Fairly new tractor so would like to clean that up. Would appreciate any ideas. Don't know if the color is superficial or it runs thru entire plastic fender.