購物之后，除了商品，還有什么不能忘記？
不要忘拿receipt（收據），上面通常會印有Exchange and refund policy：90day exchange，30day refund with tags.90天之內可以更換商品，30天內可以退貨（商品完好的狀況下）。
如果真的不幸買到了劣質商品，需要退貨，你可能會和店員這樣交涉：I bought this skirt in your store last week. What a famous brand is that! The stitches are coming off. Anyway, I’d like to ask for a refund for this skirt.(上周我在你們店里買了這條裙子。這是什么名牌啊！線頭都松了！不管怎么說，我都要退貨。)
店員可能會回答你：I’m sorry. They are not refundable. But we can exchange it for you, OK?（對不起，它們是不能退的。但我們可以給您換一條，行嗎？）
你可以堅持自己的要求：Sorry, I bought something here before and it was also broken. I just want my money back.(不好意思，我以前在這里買過東西，也不好用。我想退款。)
一般這樣，店員都會嘴軟下來，問你:Do you have a receipt or guarantee?(你有發票或者質保書嗎？)
或者如果買來的商品不滿意想換一款，可以說I will change it for another model.I will pay the difference if it is more expensive.(我想換另一款，如果價錢比這款貴我付差價。)
