Hello,
Where did you purchase these Pro licenses from?
Microsoft no longer sold Windows licenses since some years ago.
Unless you are talking about upgrade licenses, which would be labeled as Windows 10/11 Pro licenses. If you purchased from Microsoft, they are in your order history if you go to your account online, and upgrade licenses don't have actual keys, strictly digital only.
Please provide a bit more context, such as where you bought them, are they full licenses or upgrade licenses. I can try to help you sort this out.