Used your *A or BMI Upgrades?

If so did you get them and what should i be aware of if anything?
Thanks
bluefish

Be aware that United check-in agents are good at noting your fare class and checking whether these vouchers are valid for such classes (of course mine weren't!:)) Of course BMI may be different, but then again you might not want to "waste" a worldwide upgrade certificate on a short domestic/european hop.

I used a pair travelling from Hong Kong to Osaka. I assume this was the first time they had been seen since the check-in girl called her supervisor, but they allowed the upgrade even though the ticket was not issued in one of the fare classes mentioned in the Ts&Cs on the back.

Flight was reasonably empty so I don't think they had any difficulty.

I am certain that your highest chance of a successful upgrade will be to use them where there are not likely to be other Brits using them at the same time.

Nick