When I bought my car from Osborne Park the brakes were really squeeky so I went back and they said that the pads needed replacing so they did that and tried to skim the rotors. They then rang me and said that the rotors were too far gone to skim so they said I needed new front rotors. I said it wasn't my problem as I had only had the car for a few weeks. Eventually after a bit of arguing they replaced the front rotors with DBA 4000's and new brake pads all round for free