Need assistance on monitor's issue (Pixel)

[dekng97]

Hi guys, I have an ultrawide 1440p monitor that I have bought online for a week now.

The problem is that there is a pixel (white) that appears only when the background or color is light.
On my desktop, changing the blacklevel of the display works but in games and media it still appears when the color is light. (Medium grey and above the white pixel would show)
I am unsure whether this is a hot, stuck or dead pixel.

Below are some pictures I took.
https://imgur.com/a/dy8Nt

I have tried running those pixel healing tools for a while now but nothing has changed.
Thanks in advance~

 

[unclebun]

It's a dead pixel. Check the warranty of the seller and the manufacturer to see their policy on dead or stuck pixels.

 

[dekng97]

It's a dead pixel. Check the warranty of the seller and the manufacturer to see their policy on dead or stuck pixels.

I see, I bought it online so returns are a no go.
One of my friends said it is a stuck pixel on the white/blue spectrum and told me to run those pixel videos again for more hours.
If it is a dead pixel I guess there isn't much I can do?