Thank you
lowlander for recommending me the TA.
I have successfully issued my DONE4 via the same TA. I can confirm that the TA is able to issue the ticket on AA stock. ^
I concur with
lowlander that the TA speaks excellent English, is prompt in replying to emails, and knows xONEx rules inside out.
edit: I might also hasten to add that I do have a transatlantic segment on AA.