Thanks. I went to the upgrade department but, if this fails, I will try again.
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No dice.
I did learn something new though. Standard and early upgrades are two different entities. If I use my early upgrade and pay an extra $250, my standard upgrade will not change. It will stay at November 18th, so I'll be able to upgrade to the next iPhone or even purchase a second 4S if I ever wanted to.
Nikos, did you change you plan recently?