Apple India — iphone 6s problem in handset ringer silent button and socket to 2 times and many time cable failed

Address: banglore,india

I purchase new iphone 6s in third party dealer umiya mobile world to dt.8/11/2017. This iphone is network issue in 2 days so visit in ivenus service center his changed handset in a week. I used in 2 years and 8 month but 6 ya 7 times original cable is failed. I check another phone so not working in cable. My home totaly wiring checked and earthing is already completed. After one day iphone in charging mode i use some silent to ringing mode so shocked in button after check power testing detector so his power is on. And last 3 moths voice problem in speaker very low sound. Many many problems in iphone is much big name brand so very hard time and very difficult