MacBook Pro 2014 15 inch has 'clicking' noise when tilted and startup sound has a rattling/distorted sound

Hello all

I just bought a MacBook Pro 2014 15 inch and have noticed these two problems straight away. The clicking/rattling noise sounds very light, like a tiny piece of plastic each side of the bottom of screen moving around when tilted.

The second problem: when I start up the MacBook and the startup sound begins, it is accompanied by a rattling sound, which either sounds like crackling distortion or the startup sound rattling the rattly bits either side of the screen!

Does anyone know how these problems could be solved? Or should I just send it back?

Thanks