什么是Metiation Cost?

在我的International Student Housing的介绍里面,有这么一句:
Mediation Cost
There is a mediation fee of 12,025 euro for these who have acually been appointed a room. For that rent, the mediation fee should be paid by the student.
什么意思? 不懂~

字面意思大家都明白，到底要表达什么关联的含义呢？ 给个连接看看。

是下载的pdf...
其实上下问也就是介绍宿舍费用和种类,没别的,就是这一项觉得奇怪,还不是个小数字~