Had to cancel return portion of my trip, called American Airlines they said I needed to talk to Am Exp as that's where i booked my ticket, after 45 min on hold i was advised having system problems and call back... called back today and was advised I do Not get any credit for unused portion of my ticket, when booking direct with airlines you get credit or travel voucher for unused portion NOT Am Exp they give you future travel credit which then gets assessed $200/ticket change fee. Will book direct with airlines in future!