Correct. If you have not received a reply within a month you have been denied. That means you can fix you mistakes and try again.
Minecraft PC IP: play.cubecraft.net
CubeCraft Games
TheLucian
Power Ranger
It used to be every month but I believe it will be a bit longer now :(
Story
You can apply for helper once then you must wait for the applications to be reset, at which point everyone can resubmit another application. Can be seen here: https://www.cubecraft.net/threads/helper-applications-2017-open.139999/#post-747958