Hi all

We are a family of 4, booked a trip from Australia to Finland in December this year. Our flights are booked through the travel agent (class N economy), and now we would like to upgrade to Class I. I've called Qatar Australia office, and they advised me I can only do any changes/upgrade through our travel agent, as the tickets are issued by travel agent.
So I contacted the travel agent about the upgrade, but the price differential is much greater than I saw online on Qatar website (Qatar has Class I on sale online)

Wonder anyone experience tickets issued by TA can only be change/upgrade by TA, and cannot be done by Qatar reservation office direct?
Many thanks