Samsung Galaxy S7 Edge Screen Issue

Encountered this issue with Samsung Galaxy S7 Edge within almost a month, I had kept my phone on ultra power saving mode at night to test battery back up stats this week, on switching back to the normal mode

Phone started to heat rapidly and battery draining super fast, the moment it fell below 66% screen started flickering and this purple static flashing frequently

Did not expect Samsung's quality to be so pathetic with a Premium Flagship Phone, be cautious while buying this expensive toy