Not sure if this is the right forum for this type of enquiry, Mods please feel free to move if required.

I travel quite frequently between Pakistan & Australia and over the last 5-6 years have used almost all different types of airlines and combinations, namely EY, EK, MH, TG, QR, CX..

Recently I have heard of travel agents offering Qantas tickets with the following routing:

KHI-BKK (on CX)
BKK-SYD (QF)
SYD-MEL(QF)

There are numerous combinations to these as well, for example the final leg can be SYD-AKL if required.

This routing results in some really good fares. Eg, My friend who told me about this was able to book a J class fare for KHI-BKK-SYD, return for around $1400.. And this ticket is valid for 12 months!

Similarly a friend was able to book KHI-BKK-SYD-AKL, return, for $950 in economy!

My question: Where can I book these fares online? So far no online booking engine shows me this routing... Anyway of revealing this fares on ITA?