U3419W, backlight bleeding

I've purchased dell monitor U3419W from Dell reseller in 15 days ago in Belarus. After some tests I've noticed huge light bleeding : https://imgur.com/a/4gYJ4ku

I brought the monitor to the reseller. They sent it to official Dell service to Moscow, Russia. Dell service accepted that monitor backlight bleeding was a manufacturing defect and after 13 days I got new monitor. But the new one has the same problem(a bit less light bleeding, but in the right bottom corner backlight bleeding is still to huge :https://imgur.com/a/HOOgrCo 

And yes the second photo was made in a bit darker room, but anyway backlight bleeding in the bottom right corner has just a clear white color, unlike 3 other corners with minor backlight bleeding that is quite fine. So can you tell me please is this still a manufacturing defect that dell will recognize as the reason to replace monitor?