Where to Find Your Invoices for Subscriptions

Only admin users can access the invoice section. You can view and download invoices from SafariOffice and you can also set a separate email address

Viewing and Downloading Invoices

Go to Settings > Subscriptions & User Accounts > Invoices

Here you can view the invoices for your subscriptions.
You can also download them with the download link in the last column. 

Set specific email addresses for Invoices

You can set a separate email address for the invoice to go to in your Billing Information.