Sony India — worst service in worst of sony

Address:

Surat, Gujarat

Hello sir, I have bought sony Xperia Z3 and the display was cracked accidently.I have given it to sony service centre it was repaired with some mistake like dust in camera window and gap in battery cover. then 2nd time I have given it to solve that problem but after some days it was done with same problem. It means technicians of sony are learning from my phone and they want to do research something with the help of my phone. Service details are as.. service date delivery date job no. 1st 22 Nov 2014 13 Dec 2014 B1W[protected] 2nd 13 Dec 2014 06 Jan 2015 W[protected] 3rd 06 Jan 2015 pending W[protected] My phone is still in worst of sony service centre since 22 Nov 2014 and for how much years technicians of sony will do research I don't know...