Can you send me a PM with the name of a character on the account you purchased it on so I can take a look?
It is resolved for me now. I had logged all the way out and didn't see it. Did all that again and it showed up. All is well now. Do note that when you look at the available heroics the level 85 one will show up on top. Scrolling down in that window does show the level 100 heroics.
I tried to claim one on Luclin, dumped me to the desktop Never mind, I just clicked upgrade and it tried to do a level 85 character to level 85 again. I did it from character select and used to the drop down menu and it worked. Apparently the inventory window I use doesn't have the drop down yet.