Samsung Mobile — problem not resolved

Address:

Bangalore, Karnataka

i purchased a phone from samsung it has was working well for a day then over heating and everything started ! so i thought let me give it a try since its a new phone and needs optimization and it never worked well when asked at the customer care centre he says that software issue and i didnt mind it and said okay you can upgradde and give me it worked well twice at the service centre but as soon as i come home same problem arouse when asked later he sayd SIM card problem, they are not even talking technically! and they are saying no replacement for software issues only for hardware it can be replaced! according them should i break the screen and ask for a replacement!? please resolve this ! thank you