Upgraded to Pro Plan and submitted a support request.
Didn't choose a project as it shows "optional", added my message but got the following error popup on submission.
Also would be good to be able to choose projects via organisation/plan, as there's no inidication in the list I could see as to which plan the projects are on.
I have a bunch of free plan projects i was using to learn, and when I upgraded (currently trial) it created a new organisation but I don't have any projects listed there currently.