Sony Mobile — Sony atuorised service center

Website:

www.sonyindia.co.in

My name is sudhir kumar mob. no.-[protected] and i purchase sony ezperia c4 (imei no.-[protected]) since;- 27-jun-2015. i am sick of this phone due to hanging and touch problems. i went sony service center(care and care service center) times but he didn't solve my problem.this crevice center quality and behavior is very rusty. i request to you please solve my problem .