HTC India — Technical issue

Address:	Mumbai City, Maharashtra, 4000037
Website:	htc

My htc imei no [protected], & srial no. Lc56db425151 during the time of purchase the mobile dealer was confirm us if any problem within one year htc replace the mobile but last 6th months my htc phone have 3 times same problem (Ringer) and when i am go to service center they are always saying me pls deposit your phone for 15-20 days and they are not provide any back up phone and behaviour of service center also not good. I am not sending for these long days if any more option pls tell us and also share the email id of sr management so we will raise our compliant.