请教吧友,以下这个链接显示这些鞋子有20% off,但为什么下单却看不到优惠呢?
http://www.amazon.co.uk/s/ref=sr_in_-2_p_89_13?fst=as%3Aoff&rh=n%3A6759046031%2Cp_6%3AA3P5ROKL5A1OLE%2Cp_89%3AECCO&bbn=6759046031&ie=UTF8&qid=1447515759&rnid=1632651031
http://www.amazon.co.uk/s/ref=sr_in_-2_p_89_13?fst=as%3Aoff&rh=n%3A6759046031%2Cp_6%3AA3P5ROKL5A1OLE%2Cp_89%3AECCO&bbn=6759046031&ie=UTF8&qid=1447515759&rnid=1632651031