Don't know if anybody else had a problem, but:
I followed the directions off the Lego RB site exactly! I'm far from new at downloading content, so I know not to click anything twice or to do anything twice.
But I went onto my account this afternoon and saw that I was charged 1600 points instead of 800 points, and the "Lego Rock Band Export" purchase appears under my "purchase history" twice!
Any idea how to get this fixed? I've contacted support, but there's no "marketplace support" anywhere online that I've found.
Would be ridiculous to be screwed outta 800 additional points when I followed every direction to a T!