Thank you very much for the reply here Marco's it seems the issue is that it is incorrectly assigning the Computers to the wrong License pool.
we have our own Patch management license within the same Portal which is now showing as oversubscribed at 27/3 licenses used.
Were as the Product and License selected in the Patch management setup Wizard is 100% the other customers license which is still showing as 0/47 used.
Not sure where I am going wrong here, But I have reached out to Support and will browse the forums looking for a clue in the Interim.