向對方說明未付清款項
According to the accounts I just sent you, the balance for the above invoice is now due for payment.
根據我稍早剛寄給您的帳目，上述發票的結存額已屆付款期限。

期許款項盡速付清
We look forward to payment within the next few days.
我們期待在接下來的幾天內收到款項。

告知附件
We have attached a full invoice detailing the breakdown of the payment.
我們附上詳列款項細目的完整發票。

關鍵字:
invoice發票
attach附加
breakdown分類 ...