The top half of the A looks too thick and not enough space in the middle... Could be that... Might be a ase their anpr didn't throw back data cis it couldn't read it... In which case they aren't right... Whole point of standardised plates is to work with such systems...
I'd kick up stink with police first, and if no joy, go back to where you bought them, reporting them to trading standards to as the bs stamp has absolutely no relevance if they aren't acceptable to police...
Someones in wrong here... Police or manufacturer...