The Jira Cloud site we have is broken (cannot install addons) and we are unable to submit an issue to tech support!!
What???
We're planning/testing our Jira migration and have Jira Cloud Free right now, but it's broken. How do we contact support?
When trying to install an app that's needed for our migration, we get:

We already have about 15 addons installed with no issue. Now we're at some sort of maxumum and cannot install any more? Or the addon install system is maybe just broken completely?