After arriving at the number, you can do business at the counter, fill out the form, give it to the staff, pay the tax and then you can issue the invoice.
Bring the purchaser's information: the purchaser's Unified Credit Card code, full company name, phone number, address, etc., as well as personal information, and go to the local tax office.
Individuals can't invoice themselves, they can get the tax office to do it for them.