I've never heard anything of the like.
Come on. We all know that at the start of the course, the word limit is 6000-8000. Like another poster said on another thread; 100-200 wouldn't really matter, but 800 would, thats like 4-5 extra pages to read which would mean 10-15 minutes of reading for the marker...and they notice that type of thing.
I think they would mark it, but you won't get the same marks. Simply, because it is not fair, my MW is sitting at 7000 words cut down from 7800, it could of been 9000 easily, but that simply isn't fair.
Better get cracking, you probably have to hand it in tomorow. I do.