Hey Bo - Yeah if they didn't work, it is certainly not intentional. I copy and paste them directly into the book, but I know you can't copy and paste it back out of the book. Maybe a letter looks different and you aren't entering it correctly, I am not sure?
Regardless, if you are having any problems yet getting them to work, there should be a 5-digit code on the second page of the book, PM that to me and I will check it out and can PM you back the original code so you can try to paste it directly.
Have sold many and haven't heard a complaint before now. I will make right whatever may have gone wrong.