If you'd like to promote to the next available tier for the upcoming season, post your interest here. Bear in mind that you must have renewed your team for next season, and have the upgrades required for that level. So, if you'd like to move from D to C, you'll need to have bronze upgrades (level 1) for Financial, Fitness, Charity, and Celebrity. For C to B you'll need silver, for B to A, gold.
Season 14 pre-season is tentatively scheduled to begin Sunday April 22nd. We've got some pretty big updates coming for season 14, so it may be delayed by a few days so that we can make sure we get everything implemented properly. If we end up delaying at all, we'll be sure and let you know. As always, thanks for your continued support!