外贸卖家在催收欠款前一定要弄清一切原因，了解买家是由于哪些原因而拖欠货款，是由于经营过程中的失误，还是由于疏忽造成的资金链问题，或是由于对外贸卖家产品质量的不满意而产生的不满。
依据欠款买家的实际情况，选择不同的催款方式，就是能保证系追还欠款，不丢失买家的关键所在。
那外贸卖家如何写一封坚定的外贸催款信呢？下面提供一个模板供卖家参考。
We can no longer allow this account to continue to go unpaid.
To continue your open accounts it is necessary that they be paid within 60 days as agreed when they are opened.
It is essential that this account be settled at once to avoid any problem with your credit standing.
In this case, we have no alternative but to withdraw credit privileges.
The delinquent status of your account will leave us no alternative but to remove your company from our list of credit customers.
以上就是小编整理的外贸催款信的写法，希望对你有所帮助。
（本文内容根据网络资料整理，出于传递更多信息之目的，不代表连连国际赞同其观点和立场）
