Level 2 Member
I can pull up Mendoza and Salta on BA.com now. Ushuaia still no. Like you said, calling might work.The problem I encountered with Avios is that most of the locations did not show up in Argentina that I planned on going to (Mendoza, Ushuaia, and Salta). It looks like Chile and other countries are fine though. Maybe you can do Argentina if you call in. Also, I didn't have any Avios at the time, only SPG points that transferred to LAN KMs.