Turn in quest "Broken Toys" in Toy Factory to Father Frost bugged?

[Caztori]

When entering Toy Factory there is a quest in the beginning called Broken Toys. It tells you to kill the boss and when you do so, the quest is completed. Then it says you should turn it in to Father Frost after rescued him. All Father Frost says is that I should wait until he's better to turn in the quest. Does anyone know if this is a bug or something? Been clearing the whole instance as well before I tried.

I've been testing on both my 15 bear and 15 enchantress, could it be a minimum level requirement >15 to turn it in?

EDIT: Solved due to programmed response:

You have to turn it in to him at his throne room. To get there talk to the person in Forest Haven that you purchase dungeon entry at and click "enter the throne room" or something like that.