Oil markings under the glass

Hello, i have just got ahold of my Pebble for a week. I found a problem: It looks like there's something, like liquid or oil, that distorts the pixels. The distortion affects small areas, but it didnt "distort" the screen in a screen-tearing way. But, since i have mild OCD, this makes me itch. Any suggestions? Pebble support havent replied my email since i couldnt take a photo of the problem, which can only be seen with a naked eye.