Hello, everyone! I happened to find this forum when searching about the AC HK flight pass. I am a student and have regular travels from Toronto or Vancouver to Hong Kong during summer and Christmas. It seems using a flight pass save me a big sum of money. But I need to get clear about some details of the flight pass condition before spending.
---- The followings are a bit long, hope you will be patient enough to read it

Thank you! ----
1.
Validity:
It says "
valid for twelve (12) months from its date of purchase". Suppose I purchased this flight pass in
April 2008, so it will expire
April 2009, even though I won't book my first flight in
July 2008?
Some one told me a different version, saying the period counts from the first flight - in this case, the flight pass will expire in
July 2009. I doubt it.
2.
Booking Class:
It says "
subject to availability of ‘N’ booking class". I am not sure
what exactly the 'N' class is. When I am searching tickets to HK on AC website, the lowest economy class is usally 'V' or 'H'. And I looked at my past tickets, none of them is in 'N' class (they r K,H,V,etc.). So
I worry about the availability of 'N' class. Is it very limited? I am guessing it won't be available at all in high season, such as Christmas.
I use
SeatCounter.com to look up the 'N' class availability. YYZ-YVR-HKG do have some 'N' class seats (around 9). But is it really accurate? I don't want to see a different version when actually booking online.