Stains from Wallpaper

hi, the only thing I can suggest is I know to get black permant marker off walls we use windex, or nail polish remover. but not sure if this will help, sorry. good luck.

Try goof off and/or goo gone they both help with stains I've used both and they have saved me on so many things. I'd try goo gone first.

Call the company, I am sure they have some experience with this. :)

Try a magic eraser...they are with the cleaning supplies, there are off-brands too. I think the name brand is Mr. Clean. You just get them damp...they work miracles!
Also, you may want to be careful if the wall paper is textured

My first thought was magic eraser, too.

I am personally not a fan of them, but did you try the magic eraser? Also, I have seen on TV shows that they use areosol hairspray to remove things from walls. You should test both on a small area that cannot be seen to make sure it doesn't damage the wall paper before you try it on larger areas. I also read online that you could try a new gum art eraser (look at an art supply or craft store) or if it looks like it is a grease based spot, sprinkle powder on the wall and allow it to absorb the grease then brush it off with a clean paint brush. I typed into google "How to remove spots from wallpaper" and about a million sites came up. I would try each idea until I found one that worked.

Good Luck!