Companies usually have a policy where you have to have a certain amount of dead pixels before repairing. But I remember a lot of times if there were some in the center of the screen that was different and treated more seriously.
Did you tell them that it's around the center of the screen and is a huge distraction, not just some dead pixel near the edges?
I had one dead pixel, or stuck, it was red, not sure. Luckily it was on the bottom left above the taskbar. I only notice it sometimes. Though, with some games the red pixel often ends up in a radar and you get mixed up thinking it's something in the game.Pic of my bad pixel here