Recently I purchased a Nike gift card through the MileagePlus X app to receive UA miles, and then successfully made a purchase on Nike through Marriott Rewards More portal.
However, I was unsuccessful trying to use the same process for a Macy's purchase. I bought the gift card through MPX, but then when I added it to my order on Macy's.com through the Marriott More portal, there were no points offered unlike on Nike. Any reason for this? Has anyone else had experience/trouble trying to triple dip with CC+MPX+Marriott More?