I had the same suspension problem. I'm not going to type the whole thing out again... just find my old post about it.
In short: I had to get an employee to sit in the passenger seat to hear it. I did not get the noise on every pothole but it could reproduce every time if I got a pop/clunk the first time going over it. I suggest driving around your dealership and find a pothole that can induce the noise and then do a test drive for the employee. FYI: both side had the problem but rarely was there a pot whole on the left side (for me). They repaired both sides.
I think some o-ring cushion part was put in backwards or just plain defective. They replaced the whole thing. Noise was gone but at times I wonder if it is creeping back.
2017 Burgundy MKC AWD Reserve 2.3L 20" rims, Tech Package, Climate Package,