well you can call Verizon but I'm not sure its their fault, took my phone like 5 minutes to get activated in the apple store when I got a replacement, well I'm not sure the whole process was 5 minutes but he took my phone in the back to run some tests and about 5 minutes later he was out with a new phone at the activation screen with the phone being connected to LTE,
speaking of LTE I hate how every iPhone is automatically connected to the strongest network when you first set it up lol. Good ol iPhone 3G days, when it was like the second coming of christ to be connected to 3G.