The Minecraft Division is in a changeover period. Policies and server availability may change when a new Division Captain is chosen.
However, the policy while I was DC was that if you had only joined TOG in the last few months, you would not be accepted onto the whitelist unless you had an active Togger vouching for you. This policy was established to minimise the chance of griefers joining just wanting to spoil our fun.
That isn't to say that TOG doesn't want to hear from you. Whether you get added to the whitelist or not, you are still welcome to the division. Tell us what type of Minecraft you play. Tell us what you think of the latest development changes. Review a mod or challenge map. Or just reply to the posts of others.
TOG also has plenty of other games that are played and discussed. If you are at least 25 years old, you can become a full member for free and join in members-only guilds, squads and clans.