Originally Posted by
ab2013
Was hoping to get the Amex IAP discount on this, but I guess this experience is giving me less reason to renew my Amex Plat card.
IAP are special fares that the airlines only offer to AMEX, subject to very specific limitations. It's not surprising at all there was no discount on an a constructed itinerary that included mixed fare components. I would never expect IAP to apply in that situation.