I have just made 2 new bookings for the next months with SNU (hoping that the stays will happen of course - you never know in those challenging times) and, although it would be nice to have an on-line system to use them, the current system with the call center is not bad at all IMHO. When you look at the available hotels with SNU on the website, you can use the call back system and they call you always immediately and you just book with the agent and receive the confirmation by email instantly.