I signed up online, downloaded the app, could log in and see the "Connection in progress" message. Then got a text saying to contact AGL to complete the connection.
Got onto the chatbot, went through all my details only to have the person ask me what plan I wanted to sign up for... Eventually...
My guess is that as you're on QF4111 somehow there are no T class seats under that flight number so they've booked you onto the AA flight number that does have T class which is why the other bookings already under AA72 didn't get the message.
That's an article for people who wouldn't understand what a wet lease is, yet it's on a website that's aimed at people who would (or should) know exactly what a wet least entails.
I changed my QR FF number to VA while sitting on the plane waiting to depart BNE for DOH. Which in hindsight wasn't smart as the SC's weren't enough to retain Gold and I missed out on a welcome greeting and special attention on my connecting flight (so my return flights were on the QR FF, which...