QF flights can be very slow to post, or not at all. Something got broken for QF since BA did the BAEC IT "improvements" last year.

For instance, a LAX-BNE flight on 11th September didn't post until 28th September.

Another flight, a domestic ADL-BNE didn't post after three weeks, so filled in a claim online which was automatically rejected, so had to follow it up again. It's a pain as around a third of my sectors are on QF, and there's no rhyme nor reason as which can post quickly/slowly/not at all.

So I'd say after three weeks, submit a claim online, and keep a hold of your QF boarding passes, sometimes they ask for them. And to rub it in, they nearly always say "You need to add your BAEC frequent flyer membership to the QF booking..."