You can start applying for next month. It will give you extra time to get to 30/60 quality posts necessary.
do we have to re-apply each month if we are already in (asking just to be on the safe side)
by that i mean we did such and such posts last month etc repeat the new info for the OP
No you don't have to reapply as long as we find you followed the rules, your are fine to continue onto next month.
Starting from March 26th on all People joining will be added to next months campaign.
When I review the posts and process the payouts, I will re-enroll all those who are qualified. You can then check on the spreadsheet.