Yesterday morning I finally bought a few bits of clothing.
Called baggage and United Airlines several times over the 2 days, each time correcting some bit of info that was wrong (bag colour; my local mobile phone number had one wrong digit etc.).
Even when I called last night, they didn’t know where the bag was. Just as I was going to bed at 1:00, my phone rang and it was the local baggage office saying they had my bag and would be delivering it in the middle of the night (the UA117 flight from Hong Kong landed at 0:30, just like mine did).
I find it a little troubling that the system didn’t show last night that my bag was in fact on a plane at that very moment.
When I woke up this morning, indeed the concierge had my bag!
Just in time for me to head to the airport (carry-on only) in 5 hours (going to Penang for 2 days). Hopefully there’s some clean laundry in there or I’m in trouble…
Note: this would seem to indicate that the bag was not grabbed by accident by someone at Singapore airport.