I called the Singapore number last night, as a Gold member, I was on hold for 2hrs + 2 mins before they picked up. (It might have been quicker, I don't know maybe they picked up earlier and put me back on hold, as I was away from the phone for about 40 mins whilst I went down to do some laps in my condo pool).
As an aside, it was answered in South Africa, I had two bookings to deal with, one SIN-MEL, the other MEL-SIN (cancellations), they coped with the SIN one better than the MEL one, for the latter she had to put me on hold whilst she spoke to someone else, and commented to that effect (i.e. "Oh this is an Australian booking, I'll have to put you on hold to process this one"). Odd.