请求ccb时claiming for child care benefit这三个选项如何选？

yjf

online请求ccb，在claiming for child care benefit这有三个选项：zero rate, zero rate with possible top-up, and more than one zero rate。请问这三个有甚么区分哪？夫妻俩人都任务15小时以上的话，要选哪一个哪？谢谢

KEKE1983

confused

pang555

敌人说选more than than zero阿谁。我选了，还没出后果哪