As orders are placed online, and payment is made at the time of ordering (in the most usual cases) you will not receive an invoice, as your payment has already been made, and confirmation will have been sent by email, upon successful order.
You will, however, be able to 'Download' an invoice from your account panel after the proofing stages are complete, and the job has proceeded to production.
To do this, simply visit your account panel online, then your order list - if your order has reached the appropriate stage, there will be a download invoice button. (Please note: invoices are only available upon confirmed production due to any possibility with an order being changed after proofing etc.)
How to download your invoice:
1 - Visit your account panel online - this is a link at the top of the website page after you have 'logged in'
(logging in to your account will automatically take you here as well)
2 - Scroll down the page to the 'Orders' Panel - Click this panel and ALL your orders will show:
3 - In the order list - you will see an 'Invoice' button listed on your orders (assuming the appropriate stage has been reached)
4 - Click and download our invoice - this will download as a PDF format, you can choose to open or save to your computer