Yamaha — Yamaha Audio Kolkata Nightmare

Address:	Kolkata, West Bengal, 700026
Website:	in.yamaha.com

I suspect Yamaha, India (Kolkata) as well as head office in India have a strategy to brazen unethical behavior of theirs. I have been repeatedly posting comments, mails have been sent to them but no response. The content of my complaint is below -
A person representing Yamaha came to our house suggesting we pay him un-officially for fixing our Yamaha audio system, upon expressing that I would like to make the payment to Yamaha authorized dealer, he suggested I shouldnt as Yamaha would charge me more than he will. Next when I gave my audio system to the Yamaha music store in Kolkata they connected me with the same individual who had earlier visited our house. It has been over a month and no one from Yamaha is answering our calls (including the owner). I have recordings of the individuals concerned, both video & audio to substantiate what I'm saying. My father has been continuously calling & writing emails to the owner of 'Yamaha Music Square' Kolkata (Camac Street), regarding our audio system to no response.
Im going to follow up these complaints with in other forums as well, my music system has been lying with Yamaha (Kolkata) for over one month. There are others who have experienced, similar / worse experiences by exactly the same individuals ! There are other reputed businessmen in the city whom I have spoken to, who have similar complaints about specific individuals in Yamaha, Kolkata (including the same person mentioned earlier). once again I would like to re-iterate that I have evidence & proof to substantiate everything I have mentioned above. I have contacted Yamaha Kolkata via mail informing them of the same and with this as an intimation of the same to Yamaha head office, India. My email id is 'raaj.[protected]@gmail.com' I plan on continuing to escalate the issue, until theres a resolution of the same.