Hi,
It should be available to you. The forum is available.
As this is an limited access forum, were you logged into the community? You need to be logged in to access the support customer forum.
When you are logged in, go to the Quality Center / ALM . Do you see the Quality Center Support Customer Forum?
If so, then you can click on it to access it.
If you are still experiencing issues, please let me know.
Greetings,
Bill