How to obtain an invoice?

How can I get the invoice? Hello, within one month of your return from your trip, you can provide an official invoice and exchange it for a receipt. We can also provide you with an address for express delivery What items can invoices and receipts be issued for? Hello, the invoice items can include travel expenses, group payments, conference fees, inspection fees, collection of air tickets, collection of room fees, collection of rental fees, comprehensive service fees, visa fees