P2415Q, faint horizontal lines, #3

Hello,

I recently purchased a P2415Q and have exactly the same problem as described on these discussions:

https://www.dell.com/community/Desktops-General-Read-Only/P2415Q-faint-horizontal-grey-lines/m-p/5135894

https://www.dell.com/community/Monitors/P2415Q-grey-horizontal-lines/td-p/5170791

https://www.dell.com/community/Monitors/P2415Q-Lines-all-over-the-monitor/td-p/5144687

https://www.dell.com/community/Monitors/P2415q-faint-lines-in-middle-of-the-screen/td-p/5158172

I tried BID (Built-in Diagnostics)  from page 44 of the manual as well as while connected to a laptop, the results are the same. The grey lines are most visible at the middle 50% (both vertically and horizontally) of the screen while is looks fine at the edges. Most visible on white.

To be 100% sure it is not an interference problem, I unplugged all electronic devices within a few meters radius and removed all cables except power. The problem is static, does not change of fade away after "warming up".

I was able to take some photos using a smartphone macro lens (hence the low quality).

Date of manufacturing: August 2018

What do experts recommend? Should I ask for a replacement, risking to get another monitor with the same issue (as it happened to people in the linked threads) or return and ask for the money back and get some other model?