Vietnam form e goods description shows mainland company and

Hello, Mr. Zheng, this is Miss Yang from Dongguan precision mould Co., Ltd. our company has several batches of goods to be exported to Vietnam next month. We need to open the original certificate of origin. I have some questions about the certificate of origin. Our customers have strict cards in the certificate of origin. We deducted a lot of money from us because of the certificate of origin when we delivered the goods last time We usually export to Vietnam by express delivery. We don't involve shipping. All of them are express delivery. Our products are worth a lot, but they are very light. Item 7 of the certificate of origin can only show the Hong Kong company in the goods description, but the mainland company can't show it, right? However, our customers require us to show our company in the product description. At the same time, our customers also ask to check the third party invoice in item 13. What should be done to solve this situation.