Originally Posted by
bmi_Barry
...Is there an integrated computer system that would be triggered by my boarding pass being scanned twice?...
I can confirm that there isn't. There are, or were in May 2008, three *A lounges in close proximity at MEL: if memory serves, SQ, NZ and UA. I went into all three in the same hour to compare them. No problem at all. (Things could have changed in 14 months, but I doubt that's anyone's top priority.)