Can't the invoice of Hong Kong company be authenticated by C

Hello, my name is Evan. Now I have a question for you: we are Foshan company & lt; HT & gt; and we have a subsidiary company & amp; APG & amp; in Hong Kong, which is responsible for receiving and remitting money. Customers have already transferred US dollars to Hong Kong & amp; APG & amp; rdquo; account, and the title of our commercial invoice is also made in & amp; APG & amp; rdquo. However, it has been found that the mainland Council for the promotion of international trade(CCPIT) stipulates that the invoice can only be signed on mainland enterprises. The title and seal must be changed to Foshan & amp; HT & amp; rdquo; but the customer says that it can't, because the payment is made to Hong Kong & amp; APG & rdquo;, which may be due to what the other party's Bank has stipulated What should I do with this situation? Do you have any experience?