iPhone X Black Dot Screen OLED After Months

Hi everyone,

I bought an iPhone X at beginning of 2018. I used it with cover case and glass protection, but after some months it has a black dot at right upper corner, just over battery and wifi icons.

That black dot is growing up, and then of an investigation I discovered that it's a fabrication issue, its origin is a manufactured screens by Samsung that was implemented around of Apple’s 10th anniversary iPhone in the iPhone X.

However, the Apple Technical Support of official website didn't recognized the problem as a fabrication issue, with the argumentations that there aren't other similar cases or that the warranty is expired.

So, what can I do to have a solution about it?

Similar case at this forum: https://discussions.apple.com/thread/8217600

My Phone (right upper corner):

Similar case Samsung phone (left bottom corner):

Regards.