Phanteks evolve X strange smell discovered!!!!!

[fantasticCG]

So I've come back to a strange smell in my room.
After some investigation around my PC I took off the top panel and discovered this.......



Phanteks case switch button underside
https://imgur.com/gallery/dERphJ2

How would this of happened, has anyone else experienced this?

It's only a couple of months old bought from ocuk

How would people proceed now ?

Thanks