Yamaha — Service issue of AV RECEIVER

Address:	M S SERVICES GURGAON
Website:	Yamaha service center

I am forced to write this for your kind information that Please provide me complaint number as well as mailing address because your service center people making fool of your customers and degrading yamaha's brand name. I have submitted my av receiver twice but both time they said moisture is reason. Second time it was so far from my ac still I agree on that point. But when they said that it's not producing sound, I was totally shocked coz I submitted av receiver not for that reason. My only issue was quality of sound, rest was fine. How it's possible that a working avr lost its sound in service center due to rusting on crystal followed by moisture issue and charged me 12 thousands for repairing. This service center is located in gurgaon named M S SERVICES. Please look into the matter and do the needful.