Yamaha Motor India — unethical behaviour and scam

Address:

Bangalore, Karnataka

My Yamaha R15 was having a tyre issue so I went to ORION MOTORS 518, Bhoovanappa Layout, Opposite The Forum, Hosur Main Road, Kaveri Layout, Koramangala Bengaluru, Karnataka on 26th june, 2015 to get it replaced. The new tyre was fine but when I saw the left mirror it was broken and came out so I asked them to replace it as it was their mistake as the mirror was fine when I gave the bike to them. They said that I have broken it by adjusting it.Can you believe that! Anyways after much discussion with the manager and the team I made them agree to changing it. They said that on Monday that is 29th june 2015 they will change it and also wrote the same on my bill. On monday they changed it with some old mirror with sctratches all over it. This is outrageous and poor stuff from the service center. What must a customer do? I'm attaching all the documents with this post.