Hello,
If one gets upgrade for miles the boarding pass shows the award class which normally is nomiles class (eg. I), but m&m system can read the original class paid and updates miles account.
Is it the same in A3? I want to get upgrade for miles, but I fear that A3 system reads only the award class (no miles) and I will get nothing - which is important, because those are miles left for A3 Gold. Any experience on that matter? Thanks!