I dont know how i can report bugs but today i was my first time on hell aginst the countess.
Despite i thought it would be an easy kill it was a really hard and long fight since she was immune to both elements i was capable off.
At the end when she died to give me loot she did not open the chest but the quest was finished 
So it seems like i am gonna missing some nice stuff and cannot contact blizzard anyway.
Was the quest triggered or was it a open game where the countess was already done?
No nice drops to be awaited for the chest anyways, gold and some.potions are the typical “good loot”. The countess itself is the one who drops good
it was played on offlinegame. So the Quest triggert and she was not dead before but from my amazon merc lady.
I think it is bugged.
Do you know a way how i can report to blizzard ?
maybe other players encounter this too and they recognizen it to fix it,