For the Smart LEADS solution:
You can download your invoices via your Twenga Solutions by using the right hand menu and clicking on the roll-out menu between the name of your site and your logo, then by clicking on "Invoices":
On the page "Invoices" select the invoices that you wish to download then click on "Export the Invoices" and choose the format (Excel or PDF).
For the Smart BID and Smart FEED solutions:
The invoices are sent via e-mail and will soon be available in your interface.