Originally Posted by
sant2585
Further observation that doesn't seem to have been mentioned upthread - auto-upgrade is not applicable on ex-UK sectors, where a little explanation appears to say that 'auto upgrade is not available for taxable sectors'. Is the UK the only place for EK where upgrades also have a cash cost for tax?
J to F upgrades from the UK should be OK as there's no extra tax, but for Y to J then the extra tax comes in to play. However, I've paid this at the airport in the past and this could be done with auto-upgrade if the will was there.
This post from a few years ago indicates another couple of countries where this might happen.
http://www.flyertalk.com/forum/emira...l#post23446354