英文商業信件-15分一定不要直譯

We have received your letter of (加收到通知信嘅日期) asking us to cancel the order 234 and request the refund of subscription.

We are sorry to inform you that on this occasion we cannot accommodate your request. Please understand that our company’s administration structure does not allow us to alter ordering.

We do hope. However, you will come up with solutions. We will deliver your goods as scheduled.

本公司已於(日期)收到閣下的通知信要求取消234訂單及並且要求將訂金退回一事我們抱歉並通知閣下. 本公司不會接納
根據本公司的行政架構而不允許訂單改動
本公司期望. 無論如何. 閣下盡快安排履行合同上之責任

(寫英文唔難.不過要我將佢譯翻中文可能唔暢順.敬請原諒)

I suppose you have the format of letter and I'll just provide the content for your reference:
We refer to your letter dated xx/xx/xxxx regarding the cancellation of the Order 234 and the return of deposit. We are sorry to inform you that the product according to your requirements was already completed and stored in the stocking yard awaiting for your arrangement of delivery and payments. We hope that your company can follow the endorsed contract and take immediate action.
Thank you for your kind attention.