You need to have an open discussion with the Neonatologist taking care of your daughter about the reasons she is currently still hospitalized, and the goals that need to be achieved before she can be discharged home with you.
Many neonatal intensive care units also have social workers that help the families with a variety of issues (most units required the social workers to see very family). You might want to discuss the situation with them also to see if they can help facilitate communication with the healthcare team.