Bouncy Laminate Floor after installation

Hi - We have realised after a day our laminated floor installation, it is bouncy on the edges(see photos). This is the worst one. It is like this in all edges.

What could be the reason and how could it be fixed?(if needed). We want to have some idea before we talk to the contractor.

Condition of the subfloor seems fine to me but attaching that one as well. Radiator was removed before installation.

Thanks for the help!

 

So it's the last row?

Is it like it on all sides or just the full plank sides?

Can't quite tell but is your skirts fixed on top after or you having beading??

Could be that they did a bit of a whack a pull bar for them to seat fully

 

*Whack with a pull bar

No chance of that if the skirts are on top though

 

Thanks for the reply

Skirtings were replaced as well so they are on top.

it is almost all sides connecting to wall.

 

I hope they took that gripper glue up? The floors not flat and who ever installed the skirting hasn’t attempted to pin the floor down with the skirting