The agency is part of the Belgian social security system and pays out holiday pay to blue collar workers and some artists. Each year in May or June 1.7 million Belgian blue collar workers receive holiday pay, a bonus to their monthly wages that should allow them to take their families on holiday!
Sometimes the agency has a hard time transferring the cash. Addresses and account numbers are not always available. The money often belongs to temporary staff from sectors like the hospitality industry where lots of people come and go. Some of the workers are foreign and will now be abroad. Often they are not familiar with Belgian practices. For 2016 2.9 million euros still remains in the kitty.