Light bleed on Imac 27" could it be worse after some time?

Hi. Have a new iMac 27" late 2013 and i notice lightbleed when i shut it down where the black screen is, have forgot that i had it until i played a movie on it and it is vissible where it's dark.

It not mutch, look almost worse on the pics, i have reed that the lightbleed could get worse and worse? Or do it keep the bleed as it is today?
If it dont get worse i could keep it if not i want to change it, have 2 weeks to get all the money back from the store..

Thanks for any help.

Here is another pics, the issue is on the left side, the other is just the view from the camera.. You could see where the spot is on my first pics where i mark it with red. You mutch click on the pics to get the pics showing right way