Sony Mobile — worst service

Address:

New Delhi, Delhi

I bought Sony Xperia z 10 months back, due to some reason it was not charging I went to nearest Sony mobile service center in sector 3 rohini. The guy there without even checking and diagnosing gave me an estimate repair amount of Rs15000 and even suggested me to get it repaired from outside. One can easily figure out dat the sony service center executive was trying to get rid of me and was doing the same with other customers as well. It was just an issue with the charging jack due to which it was not getting charged and he told me that it's gonna charge u that much if you will get it repaired for Sony and the worst part is that my phone is just 10 months old and is still under warranty. I took his advice and and went to a repair shop out there paid 1000 bucks and got it fixed but now I have another issue with the display and I m afraid that the repair shop tech might have changed it. So my question is who is going to fix this issue now...as I have got it fixed from outside techs the warranty is voided.Is sony going to take the responsibility of the behaviour of their own service center executive as he doesn't seems to be doing his job.