it's not necessarily only through invoices.

you can issue an invoice with the same amount to the finance department to make accounts and receive cash. The financial department takes the details of cash reimbursement, or you can take the cheque directly, and then take the accounts receivable. If you don't have much money, it's best to reimburse you in cash, so you don't have to find a third party. There are many ways to choose. You don't have to use invoices to extract it.