You are correct. If you app in January, you will get open date of 1/2012.
Basically, AMEX reports open date as the month card is opened in and your member year.
Hence, January is unofficially OPEN NEW AMEX month.
My luck, I keep opening them up in Dec. Platinum before I knew any better. Centurion as it was when they invited and accepted.
wouldnt it backdate to november 2012?
I didn't get the thing about January is unofficially open new month. What does that mean?
What you mean opening in December ?
Open new Amex in January for maximum backdating. Hence people in the know open their AMEXs in January (hence the term unofficial open an AMEX month).
As for the December thing, that was just me bitching that I keep opening AMEXs in December even though I am now in the know.