To access or edit your billing information, or to download an invoice for your records, you'll head to Billing & Invoices from the launchpad by clicking the dropdown arrow next to your name in the top right. If you do not see this option in the dropdown, you will want to contact the primary user of your account.
When you've opened this, you'll come to this screen, where you can choose the product you'd like to view invoices for. Once you have that selected, click the right arrow to enter the billing and invoices home screen:
Now, on the home screen, click Invoices to view all of your account's billing:
Here you will see a list of all of your invoices. To view a particular invoice in the list, click the Details button on the right to open it up. To see older invoices (prior to September 2021), click the View Past Invoices link at the lower left of the page:
To print the invoice, scroll down and click the View Invoice As PDF button at the bottom of the page. You can also choose Send Invoice Email to automatically email the invoice to the listed billing primary user (edit this under the Contact Info button):