iPhone 6 vertical lines in screen

My iPhone 6 is new out of the box less than 12 hours ago, immediately it had a thin gray line running from top to bottom and now this morning there are two of them that come and go as they please (more coming than going). tried resetting it completely, tried the home/power button reset and got nothing :-( can anyone help me out? Brand new phone I want it to work right 🙂