2008 svr - remote desktop licensing help

Hi

I need some advice. I have inherited a 2008 r2 server. During a Microsoft audit they say we had 15 terminal server lenses for it - 15 via Open. Now, If I go onto RD licensing manager it says

5 by Open with end date in June 2023

20 by Retail end date is May 2023

5 by Open - no expiry date

How can I export the license key pack ID's so I can give to them as they are saying we have a shortfall. I have given them the license server ID as I assume they can track that way.

I can actually only find 10 license via Open in our Open agreements and have restricted the server to 10 remote connections and advised them aswell

Or am I reading the licenses incorrectly?

Thanks