Yes, both the seller and I concluded that it is a fungus growing because the level of humidity is very high lately with the rainy season in my country.Do you think it’s mildew or something? I really don’t think it’s the actual material of the case, but who knows.
The seller claimed it hasn’t been like that before he send it to me and the fungus might grew during the shipping. But I doubt it since it only took a day trip from his city to my city. So it must be because he store it somewhere that allow the fungus grow easily. He agreed to have the case return to him though.
Thanks everyone!
I might buy a brand new one with the gray color that I prefer, but the price isn‘t really something that I would gladly pay for.