Does it really say on the coupon they give you that you can trade it in for the plaza premium? But if we have a 10hr wait at the airport between flights, I am sure they wont allow us to stay more than 3 hrs.. I would assume they are only doing this to members as I really cant understand as the lounge in T2 upstairs is pretty big, The T1 lounge actually expanded recently to include the another section with basic drinks.