Restore deleted site collections SharePoint 2013

In SharePoint 2013 it is possible to restore a accidently deleted site collection. For more information, read this article: http://technet.microsoft.com/en-us/library/hh272537.aspx

You can use the Restore-SPDeletedSite cmdlet to restore a site collection.

However, if you removed the site collection using the Remove-SPSite cmdlet using PowerShell, the site collection will not be stored in a SPDeletedSite object.

This means you cannot restore a site collection that has been removed using PowerShell.