Originally Posted by
schrodingerdog
If there is no staff on the arrivals level - go out, then go one floor up to departures and there at least one of the two IB customer care positions should be open.
I went on the check-in level and walked through the rows of IB check-in counters without seing any IB staff, neither at the two IB ticket offices (closed). There was IB staff at missing luggage counters next to the luggage belts but I had no idea that I had get hotel voucher etc there (I later learned that).