Noticed myself, but also saw Gorky post it in cz/sk forums. There is the lack of the largest 3300 gold package on regular domains.
At first, difference between 2x 1600 and 3300 isn't much, bit with Flash/Weekend promos you get substantially more from that and it does look as a better offer, should you be willing to spend 100€.
I know there's an option on .com server, if you choose international when selecting gold package it's at the bottom.
Any idea why that package doesn't exist everywhere and if it might be something you'd implement in the game?