急急急 - 埃及货物低价申报联邦快递海关查验怎么？

之前快递过几次到埃及这个客户，因为他提多要申报低点好免税，一直没有什么问题，这次货多些也重些被目的地的联邦海关查验了。现在客户回信说： the goods stopped at customs and the customs ask for 1- certificate of origin 2- bank payment details now we are in big troubles becaus eof very low value you wrote at invoice, invoice should be 50% not less now , we he very very big problem , we do not know how to solve? let me know how you can give us certificate of origin stamped from egypt office. if need 10 days more , my be customer who place the order for us cancell the order. the what we do with the goods? 真的该发货前和客户确认下申报价值的，3000 美金我只给他申报400美金，现在大使馆co要接近半个月时间，还有就是我发快递时的公司名称是我们中文名称的翻译，然后给客户pi是我们的香港离岸公司，现在要co的话得，用另外一个公司。不知道这会不会有问题？谁知道的请回复下，不胜感激