...Bangkit to Caldecott: This trip will take about 46 minutes (including average waiting and changing times if any). For stored value cards, the fares are $1.53 (adults), $0.58 (children/students), $0.87 (senior citizens and disabled persons), and $1.24 (workfare concession). Standard ticket fare (ticketing machines) is $2.20.　

这个workfare 　concession怎么申请？