Sneaking this in before the thread lock:
Warning: The following information is relevant to SBD. This information may not be true in other servers, such as KitPvp, Factions, or SBF.
Gkits have either a 7 day cooldown or a 3 day cooldown. You can check what a gkit's cooldown is by typing '/gkit' ingame, right clicking a gkit's slot/icon, and hovering over the enchanted book.
A few gkits (Crate Keys, Spawner, Special, and Treasure) can be "leveled up" to obtain better rewards. To level up a gkit, you'll need to meet its requirements. Currently, these requirements are:
Level 1: No requirements (Base).
Level 2: 1 total usage this season.
Level 3: 2 total usages this season.
To see each level's reward, type '/gkit' ingame, right click the icon of a gkit that has levels (listed above), and press the stone buttons on the gui.
Please be aware that while store-bought gkits (and perm-voucher gkits) are permanent, their level ups are not permanent. Once a season resets, you will have to level them up again.