Sorry I messed that one up, 4 times in 6 years hehe, it was 2 in the morning when I typed that.
As for the reason of refusal Im not sure if Cathay allows it, certain airlines will give you feedback if you request it, and its a good idea to do so. It shows you care and that you really want to work for this company.
Not sure of the wait time to reapply but I think 1 year is for cadets, I could be wrong if I am someone correct me.
Thanks!
Cheers