HTC India — Service center cheating

Address:	Chennai, Tamil Nadu, 600048
Website:	www.htc.com

My device is htc one A9. My device warranty is going to expire on March 10 2017. I found a complaint that my rear camera picture quality is poor. I feel a sound while shaking my mobile near to ear. Now service centre is claiming my device have liquid damage and not cover under warranty they quoted in 15 k for service it is almost 50% of mobile cost. I can't able to believe this part from this compliant my device is working good.Im 100% sure they are cheating me to get money in warranty period. Please help me . I need justice I'm not a rich fellow to spend this much money for hand set.