I want to upgrade plan Individual to Enterprise.
My account was registered with the Individual plan.
(It seems that it is currently a free developer plan.)
I couldn't find "Upgrade Plan" in "Account & Billing".
(I refer to "https://support.box.com/hc/en-us/articles/360043692774-Upgrading-your-Box-Account%C2%A0")
How can I upgrade my account?
