ratestogo买了券，支付时说不支持，不知道什么原因？

mikowu

http://www.ratestogo.com/shop/hotelsearch?type=hotel&hotel.type=keyword&hotel.coord=&hotel.keyword.key=Singapore+Chinatown+Heritage+Centre%2C+%E6%96%B0%E5%8A%A0%E5%9D%A1%2C+%E6%96%B0%E5%8A%A0%E5%9D%A1&hotel.locId=loc.id%3A5538701&hotel.chkin=30%2F04%2F14&hotel.chkout=04%2F05%2F14&hotel.rooms%5B0%5D.adlts=2&hotel.rooms%5B0%5D.chlds=0&hotel.rooms%5B0%5D.chldAge%5B0%5D=&hotel.rooms%5B0%5D.chldAge%5B1%5D=&hotel.rooms%5B0%5D.chldAge%5B2%5D=&hotel.rooms%5B0%5D.chldAge%5B3%5D=&hotel.rooms%5B0%5D.chldAge%5B4%5D=&hotel.rating=&hotel.hname=&hotel.couponCode=SPRING17&search=%E6%90%9C%E7%B4%A2&hsv.showDetails=true&hotel.hid=927171&hotel.hkey=927171_null_null_null_A2:0
请帮忙看看这个酒店用40抵80后最终价格是多少，谢谢