There are 2 ways to invoice the guest after raising an invoice:
Printing it During Checkout
You can either 'Open' or 'Save' the pdf. The pdf file can be printed:
If you don't have it already, and your computer is unable to open the file, download a PDF reader.
E-mailing it to the Guest
The e-mail will be loaded in automatically from the Contact. It can also be edited to a different e-mail address if required:
Click on [SEND] to send it to the guest, or [DON'T SEND] to return to the previous window.
More information on how to Invoice an Agent.