How do you say this in Japanese?

Question:

No translations used please.

> Instead of writing in English, I thought it would be convenient to write in Japanese. Can I pay for this item on Sunday? Would that be possible? Can you combine the Shipping because I have brought two items from you.

>Is there an item available in color Red?

Thanks!

Answer:

(when you actually write in Japanese）
英語で書くよりも、日本語で書いた方がいいと思いました。(preferably put in the end, though...)
お支払いは日曜日でも受け付けて下さいますか？　貴社から2点購入していますので、
これらは同時出荷でお願いします。

-------------- please note:

貴社 is correct (I wrote 弊社 and it's wrong)