dhacker, I did fly on ACES not Saeta on the UIO to LIM route but too got 2 boarding cards. I would love to help if you want let me know what info you want I will help.
On another note, I would strongly suggest making a copy of all of the tickets on individual sheets of paper with your LP# on them. I have put My LP# at the top then copied the ticket onto the page and on my return I have attached all the boarding cards to the copied sheets. So when I send in the stubs they will have all the documentation and LP #'s attached LP will need in one package.
BSL