https://cimg9.ibsrv.net/gimg/www.fly...30a2b0d4a7.jpg
i check from this tool

use the manual tool, it's 13.9k AUD.
yup, more than double now.
earlier I booked DONE3 for 2 pax ~10.5k AUD.

https://cimg1.ibsrv.net/gimg/www.fly...e2d420ee82.jpg

Even after flying the first segment, there's no guarantee Qantas will agree to make routing changes, both due to their general incompetence and the special treatment of these fares (I've been successful doing date changes via twitter, but even they said routing changes are not allowed on the cheap ex-CAI fares, no matter what the fare rules say).

Qantas has told me otherwise. The rules for these Oneworld tickets are quite clear.

I wish that were so, alas the wording in the rules is decidely unclear and certainly leaves wiggle room to insist on revising the base fare when changing the routing after the first segment is flown.

Ie they only *imply* this shouldn't happen by virtue of explicitly saying the base fare will be revised if changes are made before the first segment is flown and being silent on that for when after the first segment is flown. Alas silence is not clarity, cf they are also silent on charging the difference in taxes which we know/accept happens.

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After flying the first segment, which method is recommanded to make changes? Twitter or phone call? I am not sure is it safe for making points change via twitter since I have to pay the tax. Also it is hard to find a expert agent via phone call.

when is your first segment?

21st July

i will complete my first segment by 2nd June, after that I will give Qantas a call on changing dates and possibility add stop, see what's their response.
I will update here

That's fine. Thank you!

That's standard verbiage in fare rules on every flexible fare.

I know one user was told that QF won't make changes, but there are no further data points on it and I anticipate people won't have any issues beyond the standard QF problems of changing anything.

Twitter is fine, if you want it on the same card you used for the ticket they'll just ask you the last 4 and I believe expiration date, but maybe it was only last 4. If you want to use a different card then I believe there's a link they'll email you for a secure payment site like a lot of other airlines have.

If this were how airlines conducted themselves, there would be almost unlimited latitude to make massive charges any time someone wanted to change anything. (eg "We silently did not mention that we're charging $2,000 US every time you change your seat.") QF have sold RTW tickets during other flash sales without changing the rules. QF have told me (and I believe others) in writing that the rules for this ticket are the standard Oneworld Explorer rules.

I see, thanks.

Sorry for the delay. Does this help or do you need more? The problem in giving the exact flights is I will have to write it out manually because I can't get the OW configurator to move to the step after the selecting the flights because I get that error.

https://cimg3.ibsrv.net/gimg/www.fly...83530f4569.jpg

It's impossible to tell from that screen shot, we'd need the actual flights you've selected when it won't move forward at the end, city pair and airline are fine, don't need flight numbers.

BTW, are you aware you're paying over €2,000 more originating from BRU instead of OSL? Since you're not using any Europe segments, you can go OSL-DOH-ORD for your first leg for a lot more miles, but you can't ticket that on the tool, have to call AA or BA. To get AA to ticket you'd need your DFW-SYD AA coded which generally isn't difficult unless near a holiday. Then QF gets real stingy with D space.

Just looking at the basics you have there, assuming you want all of those cities, here's what I'd do:
OSL-xDOH-ORD (QR)
ORD-DFW (AA)
DFW-SYD (QF, AA code)
SYD-DRW (QF)
DRW-DPS (QF JQ?)
DPS-xKUL-SIN (MH) or DPS-xHKG-ICN (CX)
SIN-xHKG-ICN (CX) or SIN-xKUL-ICN (MH) or SIN-xHND-GMP (JL)
ICN-xDOH-BRU (QR)
BRU-xLHR-OSL or BRU-xHEL-OSL (can be throw away or the start of another RTW)

If you're trying to make it a DGLOB34 to get the non-stop Jetstar flight DPS-SIN, I personally wouldn't. The price difference between DGLOB34 and DONE4 is only about €70 ex-OSL and exactly the same ex-BRU. You can get a lot more tier points going on a DONE4 and using some of my suggested routings (basically don't use the KUL connections if you want max tier points, I suspect CX via HKG would net more on both to SIN and to SEL, but it also has higher taxes, not sure about CX's YQ compared to MH and JL, I think it's higher than JL but maybe similar to MH, you'd have to test it)

*EDIT: Ah ha, just noticed your GFL designation, you wouldn't care about maxing tier points in that case. So the OSL-xDOH-ORD may be unnecessary unless you just want to fly QR. OSL-xHEL-ORD likely results in lower YQ than OSL-xLHR-ORD