Bed alignment

I recently had some body work done on the passenger side of the bed of my truck.
I noticed when I picked it up that the bed is not even on the right and left sides of the truck.
On the drivers side the bed and the cab line up even. On the passenger side as you hopefully can see the bed is angled in and is not straight. It dives in as it nears the cab.

hopefully you can make out what I am seeing in the photos.
Any advice other than what I have done…told the body shop that it needs to be fixed.

 

Is it rusting on the cross member that supports it? If so, that could explain the sag. I see it on a lot of older trucks.

If you have a bed liner, take it out and check for rust where the floor bolts are.

 

It’s unfortunately a sprayed on liner.

taking it back to body shop on Tuesday.

 

Do you have pics of the other side for comparison?

 

Here are a few additional photos. Some with a straight edge to help illustrate the issue.