Invoices are issued automatically after each purchase and the data that are used are those found in the "Edit user data" in the Control Panel of misterdomain.eu, so those you entered when registering to our site.
An invoice can not be modified.
We do recommend to keep your billing information up to date in order to avoid being with a invoice addressed incorrectly.
To change the billing information access from here and click in the left column on "Edit user data".
To view the invoices get access from here in the left column and click on "Billing".