请大家帮我看看客户回我的邮件内容 原文重现

your email received and the quote prices okay, your offer interest to us especially the xxx（产品名称）, and since is our main line of importation to nigeria market,we decided to place a trial order as follow: xxxxxxxxxxxxxxxxxxxxxxxxxxxx(产品型号和价格) we are buying through the bank under the 100% cash against shipping documents, which we do promise of fulfill our promise by honor the payment with presentation of original shipping documents to us in the bank against the full payment of the goods,pay and receive the original shipping documents then proceed to collect the goods at the cotonou port - benin republic. ,therefore by return email with the pro-invoices of the order goods ,then we print out and counter sign as order confirmation and after approval . assuring you of our fullest cooperation at all times,and hope that your esteemed firm will cooperate fully with our company to start the good business relationship together. we are now expecting your further cooperate reply by email. best regards 我没有搞懂客户说的付款方式 是什么啊？ 谢谢大家