Translator Reviews ( Japanese → Native English )

Japanese

先日、別の商品を初めて購入しました。今度、私はあなたから、まとめて10着購入したいと考えています。30%のディスカウントは可能ですか？継続できるなら、30着の取引も考えています。ただ、あなたが商品をリストした翌日に売れている物もあるので、e-mailで事前に連絡をしたいと思いますが宜しいですか？
また、回答だけは早く返す事を約束してくれますか？早く欲しいです。あと、回答が簡潔過ぎるのでもう少し詳細に頂けますか？ご存知の通り、私はあなたから何回も購入している日本人です。

English

A few days ago, I bought an item for the first time. This time, I'm thinking of buying a total of 10 pieces from you. Could you give me a 30% discount on them? If you could, I'm thinking of making an order for 30 pieces. However, as some of your listed items are sold the next day, could you send an email to me before you list new items? Could you also agree to reply to me as soon as possible? I would like to have quick responses. One more thing, your reply was too brief, so could you give me more details? As you know, I'm the Japanese buyer who has bought items from you multiple times before.