When I call the local SQ number in Singapore, and choose the PPS or Krisflyer option, I always get a Singapore agent. When in the US, I call the local Singapore SQ number even if I have to pay for the international call, rather than call the local US toll free number as the later would invariably end up in the ICC, but the former, going through the PPS/Krisflyer option, always ends up in Singapore call center. Also, the benefit of going through the PPS/Krisflyer option means that the Singapore agent knows who you are and has your record open, so you waste less time