Thank you for your reply Sterling.
I went to the store where I bought it, and as said, the demo model they had ALSO had this extreme light in the bottom and the right side. I went into their customer service, and they said that while he could take the unit to their Apple mechanics, he was really unsure about it they would do anything about it since he didnt think it was that bad.
Meanwhile my GF actually think its pretty bad on my phone now that she has actually noticed it, compared to her iPhone 6s. Her 6s is white, allthough that shouldnt have anything to do with it I guess.
My biggest concern is, that I would already get a refurbished model. My phone is only a week old, and I would really hate to have paid full price for a used unit. That is my biggest problem with Apple, sadly.
How does it stand for me? Will I get it repaired, get a new, or get a refurbished? The last thing I really dont want.