I have pre-purchased via in-game store on Steam and having Vessel of Hatred access issues，DLC content cannot be unlocked. I have reported the problem to Blizzard CS, but there has been no reply for fifteen hours。
same here, I have been telling them about this and no reply
Ive been contacted by BS and now talking with steam support. Someone gotta fix this
I am having this issue as well, contacted support and waiting on a response