2017 Macbook Pro rattling sound inside

I've bought my MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports) version 10.13.2 (17C88) - everything is fine, but if I just shake a little - something knocks inside from side to side (it is in the the screen, if you gently hold your fingers in the middle of the screen then try rattle machine then noise will disappear), I can hear it knocking around inside. I found this video on the internet, I think this is what it sounds like: https://www.youtube.com/watch?v=bWrfsWwDalA. The Apple serviceman are consistently unhelpful and just says that's OK, every Macbook has the same. That’s fine for new MBP, no problem at all. They are saying that it's fine, but it is still annoying knowing that it does this. We didn't spend all this money for it to make an annoying noise when tilted. I’ve used lots of MBP’s 2012-2017, and the same with my Macbook, no one has the same issue. I have never before seen a laptop that has parts moving around inside it. I can't stand it. What do you guys think? I’m looking forward to hearing from you soon. Thanks Dat.