I would just give it a month or two and the report will get updated. I have not really heard of Amex pulling a report on the spot for someone, it's like recon and application it goes to a back office (underwriting that usually you can't talk to) you recon for it to go to that back office and they might realize what's been happening on your reports a little bit better and cancel the account.
How long have you had this account open?
I'm surprised when you dipped into the 500's Amex didn't take your CL down to $500 if not close.
