亞萬與花旗兌換

https://epicurean.pixnet.net/blog/post/44076741-%E4%BA%9E%E6%B4%B2%E8%90%AC%E9%87%8C%E9%80%9A%E5%85%8C%E6%8F%9B%E6%B7%B7%E8%89%99%E5%8A%A0%E8%B6%85%E7%B4%9A%E9%95%B7%E7%A8%8B

花旗語音兌換
https://www.citibank.com.tw/global_docs/chi/id/card_flow.htm

2018花旗兌換改惡
https://www.citibank.com.tw/global_docs/chi/ap/edm/181113_points/images/01.jpg