你叫李红，一周前去香港度假时在一家商店买了一件女上衣，现有质量问题。请结合下面提示向该店外籍经理写一封英文信。

　　所购衣物：绿色女上衣，价格268元

　　问题：洗涤时退色，并说明理由。

　　要求：退款或换衣，并说明理由。

　　就此事发表看法或提出建议。

　　Dear Sir,

　　While I was on holiday in Hong Kong about a week ago, I bought a green blouse for 268 dollars in your shop, but there seems to be something wrong with it. When it is washed, the color runs. Now I can’t possibly wear it. It’s not my fault, so I’d like you to solve the problem for me. I insist you change it for another one for me or give me my money back. I think it’s better for you to make sure that everything in your shop is good. Then you will have more customers.

　　I’m looking forward to your early reply.

　　Sincerely,

　　Li Hong