In Reply to: Paying for an upgrade... posted by Plod on Friday, 16. August 2013 at 12:34 Bali Time:
Still a week to go, business seats are renowned for being sold late on - so they would be shooting themselves in the foot by selling you the seat.
Also - it only makes sense to let you upgrade if economy is full, and they can re-sell your seat.
For cheap upgrade wait until check in at the airport, and that is by no means guarenteed.