Only the Administrator can have access to this page.
1) Click on your profile name and select Subscription History.
2) At Subscription History page, click button Update Payment Method.
3) At Payment Method, you need to scroll down until you see list of transaction history. Click on the icon circled in the diagram below for the transaction that you want to download its invoice.
4) It will bring you to another page where you can see a blue button that says Download Invoice. Click that button to download your Invoice.