加拿大外贸
事情背景：我为同一个商品付了两次款，发邮件去请求删掉一个订单，对方回复我如下It appears there were duplicate orders placed and two invoices were paid. I have credited the second invoice to your account for $17.96. This credit will be used toward any future invoices.
我理解上封邮件是:对方把第二个订单的钱返还我账户，用于将来购买商品
可是我不理解下面这封邮件的含义了，大家能不能试着帮我完整的翻译一下？
The original email was stating that 2 invoices were paid for the SAME month of service, meaning that you paid twice for one month. That is why we issued you the $17.76 credit so that we didn't take 2 payments from you for one month of service. We did need to keep one payment of $17.96 to account for your service. You have not paid twice for any other month of service.
评论
老邮件上写的是你们同一个月付了两份发票的钱，也就是说你一个月付了两次款。因此我们返还 $17.76 ，那样的话我们就不是做一单收两笔钱了。我们会保留$17.96，用在这单上。你们其他月份没有出现过一个月付两次款（的情况）
加拿大电商露天电影首发——葡中双语字幕《中央车站》 http://bbs.shanghai.com/thread-1714999-1-1.html screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoo 加拿大电商做区块链为什么都注册新加坡基金会 目前做区块链项目的客户都会通过注册基金会来作为项目的主体，为什么都在新加坡注册基金会，首先性价比高，而且新加坡市场也比较成熟，项目
·生活百科 地板、地砖、拖把，哪一种轻便好用？
·房产房屋 如果我想在瓷砖上钻孔，我应该购买什么样的钻孔工具？