sth to say about this insane act:
1) they will call you, but perhaps after you return from your trip. When I first recorded some time 2 mths ago, that was ~24 hrs before my flight (and I was calling them to try to redeem a ticket!) I left a message but called back later same day to sort it out.
They replied me just before I return from my trip. Thank you very much... and that was at least 2 days later if not 3 days.

2) It does work calling at 9pm-6am HKT. but you might get some random agents who doesnt know what Lisbon is. (Even after I spelt her Lisbon, she still cannot find it. I'm pretty sure they dont call it Lisboa in the system...)