Product Package?!?!?

[mackooo]

Hi :)
I have a question regarding product packages, namely the display of the "product-pack-price" price. 
I noticed that when the price of the package exceeds PLN 1000, only the price of the package is not displayed and disappears
"instead of ... PLN". Does someone else orpleate or there is no restriction on the summary of packages?

https://www.abc-filter.pl/sklep/zestawy-filtrow/19120-hifi-atlas-ab-1704lc-komplet-filtrow-hifi-.html    -  it works here 

 

https://www.abc-filter.pl/sklep/zestawy-filtrow/19134-hifi-kubota-kx-61-3-komplet-filtrow-hifi-.html    - it does not work here