Think i missed something in getting my mount

[Jill1808]

Once you have reached level 16 you can access the "low level roulette". You'll get seals for this, if you use the roulette with any DoW or DoM lower than level 50. If you use the roulette as the "adventurer in need class", you'll get an extra bonus of seals and gil.
But the roulette is on a daily timer. The seals are only given the first time you use the roulette.

[Niwashi]

Once you have reached level 16 you can access the "low level roulette". You'll get seals for this,

Once you're level 16 and have unlocked at least Sastasha and Tam-Tara, you can run the Roulette and get the extra XP rewards. Then, after you've joined a Grand Company, you start getting GC seals for the Roulette as well. So your first class has to be a minimum of 20 to get the seals, since that's the earliest point at which you can join a GC. (FATEs work similarly, in that initially you're only eligible for the XP and gil rewards, but once you've joined a GC, you get GC seals as well.)

(Later, going back on other classes, it only requires reaching level 16 to run Roulette and get seals, but that's after the unlocks and GC membership have already been established by your first class through that part of the game.)