I got an email from Fashionfabricsclub.com today apologizing for the short email and offering to credit my account. The fabric was navy and was posted wrong on their website. So I have a few yards of actual black crepe on their way to me! Yay!
The navy skirt will definitely not go to waste. I found some navy and red cherry-print rayon and I'm just going to cut a new bodice. As for the other 3 yards, I'm not sure! I guess I will just keep it in my stash until the need for navy arises.
So, fashionfabricsclub.com, we are good. Your customer service does not, in fact, suck.