Sony Center — Handset problem

Address:

Mumbai City, Maharashtra

Purchased XPERIA T2 Ultra Item No 50667469 on 16.11.2014.Battery charging stopped on 18.01.2014, contacted Mobile Technology for service.At service centre they denied the free service by telling the hand set is Guarantee void and given the estimate for 7523.99 for servicing for which I denied. The hand set is brand New Instrument neither I given to any second person for use nor I opened it.Sony customer care centre also not given satisfactory justification and demanding to approve the estimate for service.One week back I contacted sales manger but no response from him.The Instrument is not working properly. IMEI N0 : [protected]