When trying to upgrade Warcraft III Reforged to Warcraft® Remastered Battle Chest® the price show is 54,30 zł (PLN), but when selecting currency, the price is 86,25 PLN - it seems only the summer discount is applied for owners of Reforged (at least in Poland).
Already reported it using battle.net launcher bug report feature 4 days ago, but it still is not fixed.
Can provide screenshot if necessary