Sangeetha Mobiles — hanging and gets switch off automatically

Address:

Bangalore Rural, Karnataka, 562129

I purchased nokia 5 om 16 october so my phone suddenly stops working and it gets switch off and i won't get on for 10-20min and it is hanging very much and if i open any amazon ot opens con this is the big problem. And i went to hosakote service center 3 times but still i am facing the same problem and now on 30/3/2018 i went to sangeetha mobile stor and said this so they said to update the phone i updated the tk same problem is there so please i request u to take any action and i[censored] make my phone ready i will be thankful to u and this is second time i am complainting so plz