Panasonic — Panasonic 50A410D

I bought Panasonic 50A410D on march 31st 2015.first day it was working after one week tv started showing complaints.It il go off in between.I called up n ask for check up.they said its a power circuit issue and took the board of the tv and returned it after a week.still the tv had the same complaint.again they came and took it for servicing.still the problem isnt fixed.its not even 2 months now that i purchased it.I want it replaced.Pls do the needful.