An apology

Dear Puzzlers who made a purchase based on my recommendation. I have been informed of an error in the construction of Petit Pack from the New Pelikan Workshop. I know that I should have picked this up when I solved it too easily and had to choose some constraints to make it tougher. I let Jakub know as soon as I found out and he has released a statement with a plan to put it right.

Jakub and Jaroslav have said the following:

Hi Everybody!
As I've learned today, Petit Pack has a mistake. We'll have to make new boxes - we are working on it. 

The New boxes will be placed on our website and customers will be able to order either with a new order or they'll be delivered free of charge. A new update will be coming in 2 weeks. 

Sorry again! 

Regards,
Jakub and the Pelikan team.

I also apologise as I should probably have picked this up.