Originally Posted by
sdsearch
... aa.com (like so many ailrilnes and hotels) outsources the buying of miles (or points) to points.com, and your actual charge on a miles purchase is billed to points.com.
This changed in 2014:
http://www.flyertalk.com/forum/credi...nsactions.html
Miles purchases will be an AA transaction, but I do not know if they use the same merchant account for this business as they use for tickets (or giftcards.)