I upgraded personal plan ($15) to an organization plan, since I got warnings about the disk space.
But just realized that all the projects are locked at my personal account, and I don’t know how to proceed from here.
OK. Since I can’t spare any time, I upgraded my personal account to $15 plan again. (So currently I am paying double, Oh well) How can I transfer my personal project to organization project?
Oh, you should have been able to transfer your locked plans to the ORG account via the steps here: https://developer.playcanvas.com/en/user-manual/profile/projects/#transfer-project-ownership
Once you have done this, please send an email to support@playcanvas.com and we can refund your new $15 plan sometime next week
Got it. Thanks! But I think the current workflow has to be smoothen. 
Yeah, unfortunately it’s due to the ORG not being an explicit upgrade to the Personal Account, it is actually a new ‘User’. Which means the whole process is clunky 
Maybe a mass transfer of projects option would make this a lot easier 