Blemish on factory Tonneau cover

Hi all, I just picked up a 2020 TRD off-road. There seem to be some blemishes on the Tonneau cover that I didn’t notice until I got home with it. It appears that some thing was used to try to remove something and left a whitish residue. Any ideas before I go back to the dealer as it is about 60 miles away? I’ll attempt to attach some pictures.

 

Who knows if the dealer will help but going forward it's going to fade anyway. Solution Finish is good for dying it black again. Just did my 2016 that lives outside and was starting to get blotchy. Forgot to take before pix but it turned out pretty good.

 

I'm going to guess somebody tried a half baked attempt at getting something (tree sap?) off by the way it looks in that pic.
I'd do what was stated above and just get a good bottle of product and nurse it back to health yourself.

 

The factory tonneau is crap.