跟单团长，我下面的链接没有买一送一的优惠，请问可以帮忙一起下单吗？ item: GNC Women's Prenatal Formula with DHA http://www.gnc.com/GNC-Womens-Prenatal-Formula-with-DHA/product.jsp?productId=12374740 quantity: 3 price: 19.99USD, member price: 15.99USD contact: 9776 7718 collection point: clementi MRT