Karbonn Mobiles — Automatic mobile switch off ( Replace or change this phone)

Address:

Mumbai City, Maharashtra

I am Vikas Sakte dt 27.04.2015 evening buy this mobile IMEI[protected]. This mobile automatic off, Battery always show low & not pick up phone calls dt 29.04.2015 ia going to shop then shop person send me to customer care center Andheri west near merto bridge. they told me i am not replace this phone update software & they update software, but my problem not solve again i am going to customer care centre dt 7th /05/2015 for replace this phone but they not replace this phone