I'm goingto guess that AMEX didn't respond. If not, consider yourself lucky. The only time a creditor is required to update all bureaus is ifthe info was inaccurate. The down side is that if you dispute with the other bureaus, it may result in AMEX updating ll three with the derog info and yes they can even though they failed to verify the info the first time around. Accurate info can be reinserted anytime within the 7 yr reporting period.