Motorola — My mobile Moto g2 its under warrenty issue

Dear Sir, I have buy MOTO G2 Generation mobile in month of January 2015. Model No. XT1068 IMEI [protected], IMEI [protected]. ISSUE is First month itself i have got the problem with mobile in camera. camera is not working proparly. then i take the mobile to Authorized service center. what he did i dont know but again i am facing same problem. so second i have taken my mobile to Your authorized service center in the area of Seecunderabad. today that service center engg that guy is saying that i cont do under warranty. and i asked abt how mach charges will be for this i asked him. he were saying 70% percent of mobile cost. i felt very bad by buying this mobile now.. everything is good and my mobile having warranty still they are asking charges please help me out thanking you Velpula Sudhakar [protected] [protected] Secunderabad sudhakar.[protected]@gmail.com