Seems to me that BEY is on the route between the Bali DO and the World Cup in Germany.
Have to spend a few days somewhere in the world the first week of June and it could just as easy be BEY as anywhere else.
Let me know within a week or so on whether you know if you guys are going to be around as I'm going to be attempting to book a oneworld award that encompasses both Bali and Germany with points in between.