I have an iPhone 7+ currently on AT&T and want to go to Verizon. AT&T unlocked it for me and I've restored to factory default and have gotten the message in iTunes that the unlock was successful. Now I go on the Verizon website and it says my phone is not able to be used on the Verizon wireless network. It has been about 8 hours since restore so I feel like I have waited long enough. My model number is MN572LL/A and it doesnt appear to be on the "cannot switch over list" Any advice?