The "support" options just send mu around in circles and it seems there no actual way to log a ticket at all.

My issue is that I activated a game back in may (shows in the list of activated keys), which has now vanished from my library. I checked if it was hidden, which is not the case.

When I try and reactivate it using the key I get a message saying the game is already activated on my account. The dev sent me a second key just to try and same error.

I tried a fresh install and that also did not help. So, I tried contacting Steam support, which appears to be impossible..