Moderator: American AAdvantage, Signatures
Join Date: Jan 2008
Location: London, England
Programs: UA 1K, Hilton Diamond, IHG Diamond Ambassador, National Exec, AA EXP Emeritus
Posts: 9,795
Perhaps AA aren't validating the Zip code field? I know other sites do, and the trick I posted is what's needed to pass Zip validation for Amex cards when using a foreign address.