Creaking rear trim / knocking passenger side

[DannyJ]

I have a 2017 A5 (new shape)  Has anyone else had any issues with a creaking rear trim? It seems to be a coming from shoulder hight of the rear trim and is getting worse. It is really obvious when reversing/driving on an incline, when the car body is being flexed. Also I have a really irritating knocking from the passenger front seat area. The dealer can’t find anything wrong. I am just wondering if anyone has had the same issues before I book it back in. Thanks