Sept vs Oct Manufacture Date and Screen Issues

Hi! Got a V30 a few days ago in Italy from TIM (one of our local carrier) with a production date of 31/10 (nearly November lol) and has a huuuuuge grain and defects untill 70% of brightness.

Here are proof pics: https://imgur.com/a/fmzx7

Gonna replace it on this friday...
 
So I'm not really sure where to find the production date, BUT...under Hardware info in Settings, "warranty date code" is 06/10/2017, and "Last Factory Date Reset" is 02/28/2017. Anyways, my screen is beautiful. I've never had any banding, or uneven coloring, weird lighting, issues at lower brightness levels, or anything even slightly off about this screen.