Just finished ticketing my DONE4 ex-BKK - my 4th I think and 2nd ex-BKK. Though I would share some experiences:

• I found and used a great TA - very good prices, excellent grasp of English, very responsive via email, quick turnaround (eg ticketing before Apr 15), and always followed through - I am happy to share her contact details if you PM me
• routing was BKK-KHG-MEL-SYD-MEL-LAX-JFK-DFW-LAX-DFW-RDU..RIC-LAX-LHR-HEL-LHR-DXB-LHR-HKG-DPS-HKG-BKK
• reservation made with AA RTW desk
• first reply from TA was that the airlines were saying my routing was not valid because I was stopping in MEL twice and they said I am only allowed once - clearly incorrect
• second reply confirmed that MEL was not a problem but itinerary was invalid as I was backtracking through LAX
• at this point I replied I didn't know which airlines she was dealing with but they clearly did not know what they were talking about - my thought was they were looking at DGLOBxx rules and not DONEx rule
• she replied saying she had been working with BA/QF
• I informed her that the reservation had been made with the AA RTW desk and validated an rated by them, so there should be no problem. I suggested she work with the AA ticketing agent instead of BA/QF
• this worked as the itinerary was fine and stopovers were confirmed for purposes of calculation of taxes - with one change - AA apparently insisted that for them to issue the ticket I had to change QF 93 to AA7349 - which I didn't care about

I must say that I had similar problems last year with QF in BKK having no idea about RTW rules and randomly making rules up - I had to work with the QF Premium desk in Australia to put notations in the PNR to the effect that routing is valid. I don't really blame the TAs - can't really expect them to know the rules. And it seems that unlike in Australia where the TA themselves issued the ticket, in BKK the TAs have to work through one of the airlines to issue tickets - is this correct?

Also, although I assume the AA7349 change is due to some internal AA requirement that a trans-oceanic segment be with them, I find it odd that on a ticket valid on any OW carrier, they would insist on this - because the day after ticketing I can easily change it back to QF93???