Enthir will not sell to me I only have the option of asking "things not to do here" I followed him for a long while even in his room he will not sell to me,and I need a infinte sourse of black soul gems.Is this happening to anyone else where he will not sell to you?I have done all the mages quests to become arch mage and both quests where I had to get a staff.

bump anyone at all can help or advice?I tried to reload very far back but he seems to have never been able to sell to me.