Hey
@Bardbatos,
So yes, ranks are no longer global and need to be purchased per realms. I believe this was implemented in June of last year, but I could be off on that. The reasoning for this was to lower the price of the ranks, overall Elite went from $150 USD to $50. For many players this made ranks much more obtainable for them.
Luckily for you, your VIP rank is still global, meaning you still have VIP on all realms that were available at the time of global ranks (all realms but Earth). You'll be able to do rank upgrades from the cubits shop in-game (/store). All you'll have to do is buy cubits from the online store and you'll be able to upgrade!
I hope this helps, if you have any further questions feel free to ask!
~TeamJacob