Useful for you to post your experience Guy Betsy. From the very beginning of my dealings with AA DUB I detected that its fares desk was the major problem - I believe they got my fare / taxes right in the end but challenging them over repeated poor understanding of product rules was such a bore.

From the point at which AA DUB became involved in the re-issue of my DONE5 the following happened (posted for others in the same situation to be mindful of):

* Despite being told that seats had been requested for each segment, none of the non-AA carriers claimed to have received any kind of request
* Segments which were no longer being flown were left in the reservations system, almost leading to some carriers cancelling both reservations
* Re-issue fees were charged, even though the rules clearly showed none were applicable in this case
* Internal flights in Chile were booked in L class, even though the rules state Y is the applicable class (might not matter to some, but many OW FF programs give lower mileage for the discounted econ fare class). Even when the RTW desk intervened to clarify the rules and changed it to the correct booking class, DUB changed it back - twice!
* All of my segments on CX were 'automatically' cancelled, AA failed to pick this up and had I not been monitoring for renegade changes to my itin right up to the moment of travel, I would've turned up for flights finding i) I no longer had a reservation; ii) the flights were full
* When sending in the tix for re-issue (about 3 months ahead of travel) I stated that I need the new ones back a month before the first segment was due to be flown as a business trip would take me away from home during the intervening period. As the date drew nearer I kept on being told "next week", once it became truly urgent I discovered - much to my horror - that nobody has notified ticketing of the urgency of re-issue (or so they said) and the intention had been to send me the new tickets just a few days ahead of travel.

There was more, but I won't bore you with it. All I know is that I'll be mighty relieved when this itin is completed and I no longer have to cross-check AA.com with checkmytrip.com on a weekly or twice-weekly basis.

I wrote to AA's European VP to highlight these issues, if only to prompt some tightening up of procedures, and just got a flannel response back from customer service (two months later). The DUB office seems a law unto itself and nobody within AA seems inclined to do anything about it.

As I said before, lesson learned. But any of you considering an ex-CAI AA RTW which may result in the need for subsequent changes via DUB, be mindful of what I've said.