So that whole At&t webchat about how how all early orders for the iPhone 6 Plus will be delivered on 9/19 is bull. I ordered 3 iPhones (Two iPhone 6 Plus, One iPhone 6). I put my order in at 11:45PM PT through the Premier site (that's right, 15 whole minutes early) and my iPhone 6 Plus orders went from "10/02/2014 To 10/13/2014" to "10/13/2014 To 10/22/2014" in a few days. I checked the standard order status page (not the premier one) and my iPhone 6 has a tracking number for 9/19 delivery, but both my 6 Pluses have a ship date of "10/02/2014 To 10/13/2014".
I haven't seen one post about a person with a 6+ who has 9/19 delivery. Either At&t is holding them all for the stores, or they had a minuscule amount ready for online orders.
Premier Customer should go to
www.att.com/wirelessorderstatus and use either their phone number to look up the order, or use the Premier order number has a "Order Confirmation ID", it won't work if you use the number has "Order Number"