Beginning with the August 20 game update, all players who have Eldritch Horror Gathering Tools will be able to visit a Black Lion Exchange Specialist at any of these locations to exchange them for a version that includes the glyph selection containers.
Players who purchase the Deluxe, Ultimate, or Digital Deluxe Upgrade editions of Janthir Wilds after the August 20 game update will automatically receive three glyph selection containers with the Eldritch Horror Gathering Tools.[1] In addition, players who after the August 20 game update can also visit a Black Lion Exchange Specialist at any of these locations to exchange them for a version that includes the glyph selection containers effectively giving them a total of 6 glyph selection containers.
Source: https://wiki.guildwars2.com/wiki/Eldritch_Horror_infinite_gathering_tools
The problem is that people buying deluxe after the game is out gets 6 glyph select boxes and the people that pre-orderer the deluxe/ultimate only gets 3 glyphs in total.
It's totally unacceptable, you're basically getting punished for having faith in there product and ordering it in advance.