Invoice problem in patent application

First of all, to answer your first question, the general society asked if it was necessary to open an official ticket (the ticket for the juice bureau). If the customer needs it, just wait for the official ticket of the juice bureau. If the customer doesn't bring it up, the agency will generally issue an invoice to the agency. Then the official ticket is at the agency. Secondly. It's not directly opened inside, but usually takes the official ticket to pay the ticket opened by the agent. Thirdly, if there is no official ticket from the juice bureau, it will be bad to defend rights in the future.