Workers Plan stuck on Free Plan - Cannot upgrade to Workers Paid

I was on a Workers Paid plan some time ago, then downgraded it, and now I want to enable it again. I can't do this because of a Workers -> Plans state bug. It says "Your current plan" on the Paid plan, which is not true - I disabled it a while ago. Can someone unstuck me from this situation? I don't have any unpaid invoices. On March 15th, I issued a case for support without an actual response (just a general auto-response that solves nothing). Case number: 01429354