Originally Posted by taipeipeter

Apologies if I'm taking this thread off topic, but my question does stem from the issues above (and 7 pages into it, it does seems everything that can be said directly re. the OP's question has been said). Anyway, my question is: I will be flying on an international Z-fare soon, and I know it is not upgrade-able, but if by some chance I'm offered, say, a paid upgrade into a first seat, is that illegal and subject to UA confiscation?