求救这个Billl of Entry什么意思？？

dear??mr. yatender, kindly go through the trailing mail, kindly provide us bill of entry so that the payment from canara foreign department can be released to everbest bank. ------------------------------------------------------------------------------------------------- payment of $ 6645.50 is made by??canara bank on 16/9/13 but canara foreign department could not process as they requires bill of entry of the same. alternatively??, provide the undertaking ( as per trailing mail??) till you arrange bill of entry . 我们是托把单据交给客户银行的，所有的单据，我查了下bill of entry是报关单的意思，这个我们没有啊，客户需要的什么帮我看下