货今天到港，欧洲客户不付尾款！急救！

合作6年的老客户，欧洲小国家有个小工厂，也做贸易。每年订单量USD50W 左右，利润在30WRMB左右， 付款前三年还不错，这两年的尾款总是拖到船到港前一到两天付，现有票货，今天到港3/11/2015，USD10W货值，预收了5W USD, 尾款5WUSD, 我从22号开始催尾款，28号又做提醒，并同意只支付3.6WUSD就放货，29号又同意收到3WUSD就放货，客户的邮件反复说他的账户上没有资金，只有等到11月15日左右他的客户付款过来才能支付出去。银行贷款也不会这么快批下来，没有其他办法支付。以下是我们最后两份邮件的来往，烦请大侠指导怎么回复。

客户发邮件要电放寄相关提货资料。2015-11-02 17:50:02
Dear Lily
Send me also the commerical invoice, packing list and certificates for AISI 304 and AISI 316 L flanges because I have to send to custom office.
Please reply urgently .
regards,
我非常恼火，一反平和，积极处理事情配合的态度，回复如下：2015-11-02 18:40:05
Dear Roger,
I send you payment E-mail on 22/10/2015,  Remind you on 28/10/2015, Give you very good payment term on same day.  Also very good payment term on 29/10/2015. I understand you, You have to understand me.  We have to help each other.  It is very simple and fair way to do business. We respect the price,quanlity and delivery, Client have to respect payment term.

There still have 5 days for container free useage. All documents will send you after left payment receive.
客户看了之后也没有什么辩解的，邮件如下：2015年11月02日 19:49
Dear Lily,
I understand your position and I suppose you understand my too.
It is not a question if I want to pay you or not. The question is that currently on my account there is no money to pay you the material since I receive it from my client. It will happen around 15/11/2015 It is not possible to do in a different way.
So , we can talk about that and spend more time.Your choice is to send me documents or not , if not the container will be on seaport till we get money from my client and I will have no possibilities to deliver the goods to my client. I have no possibilities  to do in a different way.
Hope you could understand.