翻译成英文：单证在我们财务那，她说还没有收到货款，所以我无法给你寄单

上面的都是机器翻的.
我来给你翻:The Documents are in financial Department,The Accountant says She have not receive the payment so far,that why I can't Sent the documents To u.

In our financial documents that she says have not received payment, so I can not give you sent single -

In our financial documents that she says have not received payment, so I can not give you sent single

我BEC高级，可是单证是什么啊？果然学校里过的级工作上也是不够的？

The relavent documents are in our financial departent. She said that she havn't received the payment. So, I cannot send you the documents.

The documents are in the financial departments, as we havn't received your payment, i can't send the documents to you.
个人认为，虽然财务部是财务部，但毕竟和你们销售部同归于一个公司，和外人做生意，应该用we，而不能说我怎么样，她怎么样。