You can view your past orders and print invoices simply by logging into your Oddbox account and clicking on the Order History tab.
Here you can view previous orders as well as click on each order to print individual invoices if needed.
To print an invoice, click on view order details for the specific order you need (see left photo). Once you are on the order details page - usually indicated by your order number at the top (see right photo) - click on Invoice PDF.
Your invoice will then download, ready to print.