Long time lurker needing advice .
I’m planning a RTW starting next Jan with all of the flights except one being finished by the end of May 2026 .
my hopeful route is as follows
OSL-DOH
DOH-COK
TRV-CMB
CMB-KUL
HAN- HND
HND-LAX
PHX-MSY
ATL-DUB
FUB-OSL

I have put dummy dates into the One world RTW site and have managed (sometimes!) to get an itinerary and dates that work , for a very good price .
my questions are ,
1. is it still worth contacting the AA call centre to book
And what’s the best way to do this , now that Skype isn’t a thing ( is it possible to do via e-mail?)
2. if there are date changes once the trip starts, how expensive and how easy is that to do?
3. Does it actually work, booking the ticket through the website or am I better using a specialist TA (Propeller Travel mentioned before )

I would appreciate anyone’s input with this , thanks in advance