From my side I saw too that the price not show directly lowered, but it is after puting it into the cart, so not need to be scared. Second thing: price of individual game sumed together are still little higher (4 games x 7.99pln = 31,96pln) then bundle alone (28.49pln) so someone mess around with missinformation (I even checked on english version with dolar payment 4x 2,01$ = 8,04$).
This bundle will leave GOG on December 13, 2024 due to Blizzard's decision. And it's unlikely to come back. For this reason, the GOG Team gave us a code to lower the price of the bundle before it disappears from the store: MakeWarcraftLiveForever Feel free to purchase while the product is available.