If what you have is a Free Inventory, from your inventory, click on Rounds, then on the Upgrade button, and go from there.
On the other hand, if you have already paid for a division, but wish to upgrade your plan, please follow these 2 steps:
1. Navigate to our pricing page and note the difference in cost of the two plans. Do not purchase from there -- you would be buying a new division.
2. Instead, go to our custom payment page and enter the difference in the plan cost only with a note on the payment requesting us to upgrade your plan. (Please include the number of your inventory or division as seen in its URL.)