That stinks. I wonder if it's because it's from one vehicle to another.
I had an order in for a MY5 seater and my EDD was pushed way out to Aug. (ordered in Mar and was originally late June).
My sales advisor moved my reservation and deposit to an otherwise identical 7 seater that is incoming to a different location. Are you nearby your home location? I wonder if going in, in person would get you a different result.