Is it possible to get upgraded on sale Qantas international fares?

hi

has anyone had experience (or know of) gold Qantas flyers getting upgraded on the normally non-upgradable sale international fares. obviously you can’t apply online… but do upgrades happen?

Was Platinum with them a few years ago and got knocked back on the same request. It’s all to do with the fare class, Discount Economy E, N, O, P and Q it’s not possible to upgrade.