Upon purchasing my Jeep Wrangler used my documents...

Upon purchasing my Jeep Wrangler used my documents stated that it had new brakes and rotors. After driving it home and having it for two days I noticed squeaking. I looked at my jeep and the front rotors were worn and we're not new as stated on my documents. So I drive up to the service department and they said it didn't need fixed since it still had life left.. The next day they tried scheduling me to have the repair done but it would have to be at my cost? Won't go here again.