Sony India — Harassment from sony service center

Address:	Darjeeling, West Bengal, 734005
Website:	www.sony.in

I purchased sony xperia z1 on date 4 June 2015 and after some month battery problems in it. I went to sony service center on date 10 may 2016 and till one month did not respond suddenly call me your mobile panel corner is break. Can be break when open back panel you have been pay 1500 rupees for back panel. I say done. Today suddenly call me your estimed price is 4000 rupees I said why will pay 4000 my mobile in warranty. Not get warranty causes Your back panel is crack. I knew back panel cost is 900 to 1200 but why give extra cost.
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