Strange that it doesn't cover the entire screen, but just a section of it (the top bar is fine).
What happens when you boot to safe mode?
After a while your phone will ask you to boot to safe mode. See if the issue exists in safe mode as well.
Still the exact same when I booted into safe mode
Then it's time to backup your files, save this picture and take it back to the shop for warranty repairs. You might try a factory reset, but if safe mode doesn't sort it out then I don't have much hope that a reset will.
Yeah this phone is brand new today so I figure resetting won't make a difference. Have sorted out sending it in for a repair. Was just making sure there wasn't any way I could avoid that.
Cheers for your help