FlyerTalk Evangelist and Ambassador: The British Airways Club
Join Date: Jun 2008
Location: Somewhere between 0 and 13,000 metres high
Programs: AF/KL Life Plat, BA GGL+GfL, ALL Diam, Hilton Diam, Marriott Gold, blablablah, etc
Posts: 33,190
The title mentions avios. My experience with aa is they are not that flexible on award ticket. I think the op would have had a stronger chance asking for a free of charge change to the routing via clt that they booked rather than book separately and ask for a fee free refund which I do not think is very likely in this case.