Short answer: you probably do not need to sign up at all.
Every article in this knowledge base is public, so nothing here is waiting behind an account. You can also submit a ticket without one. A support account is worth creating for a single reason, which is keeping your own tickets together in one place.
And if you want the fastest route to a person, that is not the portal at all. It is Chat with support in the Help menu inside Vome.
No. Not any more.
Vome support used to be split into an Admin Support area and a Public area, and administrators had to be added to an admin group before they could read the admin half. That split is gone. There is now one knowledge base, visible to everyone, in English and in French.
So if you were told to sign up and then wait to be granted access to the full library, that step no longer exists. Search or browse and you already have everything.
Click Help in the top bar of Vome, then Chat with support.
Chat is the best route because it collects the details we need while you still have the problem in front of you, which is usually the difference between one exchange and four. From there we can record a bug, log a feature request, or point you at the right article.
More than most admins realise, so it is worth opening once deliberately:
Your ticket history.
With an account, the tickets you file are tied to you: you can reopen the portal later, see what you have raised, read the replies in one thread, and add to them. Without an account, a ticket still reaches us and we still answer by email. You just do not get that single view of everything.
That is the whole process. There is no step where you wait for extra permissions to be added.
No, and this is the one thing worth being careful about.
The Sign up and Sign in links on this support portal create and use a support account. They have nothing to do with your Vome account. Signing up here does not create an organization, does not create a volunteer profile, and will not let you log in to Vome.

Only the ones who deal with support.
It used to be advice to have every admin create an account, because that was the only way to read the admin articles. Now that the library is open, the useful version of that advice is narrower: whoever raises and follows up on tickets benefits from an account, and everyone else can simply read and chat.