Even if I had a national lottery machine that they have in the shops for scanning the cards you need to enter the 4 didget number under the scratch off section as you scan them.  Without scrating them off you can't scan them even if you happened to somehow own a machine to do so.

Edit
I found an old sratchcard in my work bag. You can see the Hidden code in the bottom right in the scratch off area

https://ibb.co/VMfp64p