If you are on the program, you will understand the issue.
The promise was that people can get a new iPhone every year. Not every 13 months. It's also a reasonable expectation that the new iPhone described is the model that the customer wants.
People on the program, if they want the black 7 plus, they are not likely going to get it before the 13th payment.
I am on the program, and I kept refreshing since 12:00 on multiple devices. By the time it loads, which was about 12:07, all blacks 7 plus were gone. After browsing for bit more on other devices, I ordered a Jet Black 7 plus, and the delivery date is mid October. I will definitely bring it to Apple and ask them to covert it to my upgrade program.