（1）subject: Demanding Overdue Payment
Dear Sirs,
Account No.8756
As you are usually very prompt in settling your accounts, we wonder whether there is any special reason why we have not received payment of the above account, already a month overdue.
We think you may not have received the statement of account we sent you on 30th August showing the balance of US$ 80,000 you owe. We send you a copy and hope it may have your early attention.
Yours faithfully,
xxx
催款函主题：索取逾期账款
亲爱的先生：
第8756号账单
鉴于贵方总是及时结清项目，而此次逾期一个月仍未收到贵方上述账目的欠款，我们想知道是否有何特殊原因。
我们猜想贵方可能未及时收到我们8月30日发出的80，000美元欠款的账单。现寄出一份，并希望贵方及早处理。
你真诚的xxx
（2）Subject: Urging Payment
Dear Sirs,
Account No.8756
Not having received any reply to our E-mail of September 8 requesting settlement of the above account, we are writing again to remind you that the amount still owing is US$ 80,000. No doubt there is some special reason for delay in payment and we should welcome an explanation and also your remittance,
Yours faithfully,
xxx
催款函主题：再次索取欠款
亲爱的先生：
第8756号账单
未见贵方对我们9月8日来信要求结算一事之回复。我们再次来函提醒贵方，欠款为80，000美元。毫无疑问，一定有特殊原因使贵方延误付款，我们期待贵方说明原因并寄上汇款。
你真诚的xxx
（3）Subject: Insisting on Payment
Dear Sirs,
Account No.8756
It is very difficult to understand why we have not heard from you in reply to our two E-mail of 8th and 18th September for payment of the sum US$ 80,000 you are still owing. We had hoped that you would at least explain why the account continues to remain unpaid.
