Does CCPIT commercial invoice certification need customs dec

OK, is it necessary to attach the customs declaration form to the commercial invoice certification of CCPIT? Foreign guests recently asked us to increase the unit price and total price of the certified invoice sent to the local government, but the CCPIT needs to check the customs declaration form when handling the certification. What can I do. What's more disgusting is that we need to re authenticate several invoices that have been certified and increase the unit price. Otherwise, we won't give you any money. Do you have such channel resources to handle?