What's the deal with the survey you get after purchase?

[Dani]

Can anyone tell me the importance of the survey that comes in the mail (after the H3 purchase)? Had to go back to the dealership last night as I wanted to know about rear wiper not working and they kept asking me if I had gotten my survey and if I was going to give them all the highest ratings. How do those ratings affect the dealership? And how could they possibly expect me to give them the highest ratings when they tried to screw me over on several things. First the financing, then the dvd entertainment system, then the 3m coating for the paint chips. They offered the dvd and 3m items to me at no charge "to cover my trouble for the financing issues" and last night they had changed their minds and are giving me nothing. I really don't think they wanna see my survey.