假如你是工厂，可以这样回答：DEAR SIR，THANKS FOR YOUR MEAGE。WE WILL FOLLOW THIS CA。WE WILL HE A MEETING WITH PRODUCING DEPT，INSPECTION DEPT。。。。。THIS AFTERNOON TO DISCU THIATTER AND REV TO YOU A。S。A。P。PLEAND ME A PHOTO OF DAMAGE。
第二，一定要用WE，而不是用I。我建议 绝大多数情况下，用WE比用I更好。WE显得你更PROFEIONAL，因为你代表1个CO而不是你私人，当然自己飞单的人除外。尤其在投诉的时 候，WE表示你是有后台的！
和生产以及检验部门的会议也很重要，这个会议可以让大家多少知道些货物是否有问题，有多大的问题，我曾经碰到过生产部门把我的色料混合错误，配比 率搞错的 事情。知道了错误所在，才能应对，我想公司内部的人，即使要对你隐瞒，也会比对客户的隐瞒少些，也就是说，你总是比客户知道的多些
i. useful expressions 常用语
1. how to start your letter? 如何头？
you he not responded in any way to our recent letters about your past due account.
we remind you once more of your open account that is now ___ days beyond our ___-day terms.
your account is still unpaid in spite of our continual reminders asking for payment or an explanation for your delay.
we urgently request that you immediately pay your balance of __, which has been outstanding since ___[date] despite several notices from us.
2. how to warn the recipient against further delay? 如何警告对方不要拖延？
you must realize that we cannot afford to carry this debt on our books any longer.
any further delay in paying your balance due cannot be accepted.
you can no longer delay payment if you wish to keep your account open.
our next step is to take legal action to collect the money due us.
this is unpleasant for both of us and is damaging to your credit rating.
3. how to specify your deadline or demand immediate payment? 怎样说明你的截至期限和要求马上付款？
we must now insist that your send you payment within the next five days.
unless i receive your remittance within the next three days, our attorney will be instructed to start proceedings to recover the debt.
if we do not receive remittance within five days from the above date, we will he no choice but to pursue other collection procedures.
after april 30, we will he no choice but to cancel your credit and turn your account over to a collection agency.
4. how to end your letter? 如何尾？
we look forward to your prompt payment.
your immediate response is necessary.
it is up to you if any legal actions will be taken.
please make every effort to ensure that we are not forced to take this drastic action.
we must hear from you at once to oid further action.
ii. sample 范文
i am afraid your failure to settle your account, which is over due for more than six months, will lee us with no alternative but resort to legal proceedings.
this is to notify you that unless we receive your check for $7,550.50 by june 30, we will place your account in the hands of our attorneys for collection.
iii. tips 掌握写作要领
1. choose a firm tone for your letter.
2. remind the recipient of your previous collection letters.
3. remind the recipient of all the necessary details:
the amount owed by the recipient
the length of time the bill has been overdue
the additional amount of late charge if there is any
4. tell the recipient what kind of legal action will be taken if the final collection effort fails
We are glad to send you sample .As you know ,many clients asked for sample ,we stop to sending sample free of charge now.We can provide several free sample for a trial order.
Looking forward to your trial order.