1. Just Login Into Your Billing Account
https://clientarea.visichatdesign.com/clientarea.php
2. Click the Billing menu.
3. Click My Invoices.
Your invoice history is displayed on this page. If you have a lot of invoices they will be split across several pages, use the Previous, Next buttons on the bottom-right corner to move through the pages of invoices.
The "Status" links in the left-hand sidebar can also be used to help organise your invoices by type, for example to see all the Unpaid invoices.
Finally, you can click the column headings in the main table to sort the invoices in descending order, click the colum heading again to sort in ascending order.