唔該幫我中文翻譯做英文信件

Date : (dd/mm/yy)

XXXX Company Ltd.
(Address)

Attn: Accounts Department

Dear Sir/Madam,

We enclose our Proforma Invoice(PI) for your reference. Please settle the outstanding sum of HK$xxxx ( i.e.70% of the total amount shown on our Invoce No.xxx) as soon as possible before delivery.
Thank you for your attention.

Yours faithfully,

(signature)
Mr.XXX/Miss XXX,
Accounts Manager/Accounts Supervisor

Encl.

per invoice enclosed , please make necessary arrangement to clear balance of 70% of the bill before delivery. Many thanks

2011-03-17 05:40:02 補充：
to clear the remaining balance of 70% of the bill before dispatch.