You ordered a very popular model that is in high demand, low volume.I pre-ordered the 7+ 128GB Black about 2 mins after preorder went live under the upgrade program and it shows a delivery date of Sept. 27th - 29th. Not sure what everyone else is telling them, but I just got off the phone with them and they were zero help. Just told me sorry and that it was a popular model.
They can't just poof one out of the air.
And they usually always overestimate the deliver date, so you will probably see your much sooner.