Went to book Syd-Sin-Fra (Sq J) - Krw (Lh J). Can't do it online but can see Sq J Syd-Sin-Fra and Lh J Fra-Krw are available separately. Rang Sq and they can book Syd-Sin-Fra in Sq J but only Fra- Krw in Lh Y. When I asked why I can see Fra-Krw in Lh J available online, they said that is only available as a separate booking. If I wanted Syd-Sin-Fra-Krw on one ticket and priced at 105K pts, the only availabilty for Fra-Krw is LH Y. I booked it as Fra-Krw is only a 90 min flight but now realise I won't have lounge access at Fra. Is the agent right? Anyone come across this before?