What I was told is unless you expedited your shipping it can take another 10-12 days after you are told it has shipped for it to actually arrive. Pathetic really but that's how it goes I guess. Note to self my next upgrade will be through the Apple store directly that's for sure. This is a joke.
If you look at the AT&T and Verizon pre-order threads it's just as bad. I called T-Mobile the other day stating on Apple's website I can get the 6+ SG 128GB in 7 days, meanwhile my order keeps on getting pushed back. Lady on the phone said Apple is not supplying the carriers with many phones.
Alternatively, you could just buy the thing outright with no subsidized pricing.