Friendly Qantas check in told me that the business lounge was opposite gate 29. They did not say that the international lounge would be closed and we would have to wait outside for almost an hour with no explanation part of a growing and frustrated crowd. We watched a steady stream of staff enter via keypad each carefully avoiding eye contact with the waiting customers. One group of travellers arriving as staff entered followed to the door but were swiftly repulsed given short shrift. We were eventually admitted passed through the formalities and I made for the Qantas business lounge which I found to be closed for a further half an hour with no indication as to why. A passenger paying the business class fare has as part of the expectation free access to the appropriate business lounge this I believe I paid for when I booked with BA/Qantas why did they not say that the airport would in effect be closed to international passengers. Christchurch is a fine city but it seems to have a part time airport.