Sony India — regarding service center

Address:

Jamnagar, Gujarat, 361006

I bought sony xperia r1 plus from amazon on dated 22.11.2017. There is update from sony xperia r1 plus i updated my phone but then there is problem in working like camera suddenly not working or watts app not working and some of apps not working for that i visited jamnagar town situated sony service center. They told to send imie no which clearly seen but in amazon invoice it's not cleared so i will send them imie no in box of my phone but they argue to send invoice in which imie no clearly seen do necessary action regarding this