I started a heroic duels run roughly 3 hours ago, bringing my gold balance to zero and completed it about ten minutes ago. On the rewards screen I received 40 gold and a pack, but on the main screen my account is still showing 0 gold. It appears I was no granted the gold I should have received. (No Screenshots as I was not expecting this to happen) Any ideas on potential solutions?
Other people have reported that the correct gold amount is displayed if you log out and then back in. Try that.