Not meeting the minimum age requirement (16+).
Not enough effort/detail on your application scenarios.
Previous inappropriate conduct in the server.
If your application was denied, you are free to reapply 1 month from the receipt of your denial notification (Ex. you receive a denial notification on January 1st, you may reapply on February 1st). Note: applying before the month waiting period will be grounds for immediate denial and a reset of the waiting period. 3 repeated applications before the waiting period is completed will result in a ban.