I am very shocked at Neiman. Usually when I get anything from them; especially bags; they are packed very well.View attachment 3482553
I can see your concerns but it looks ok. Mine from Neimans was shipped squished in at the top and lots of loose stitches. They are not too hard to get at the major retailers now if youre worried about getting another.
Maybe you can stuff it and then secure the perimeter by placing it in some type of box; possibly a shoebox; to straighten it out.