I'm unable to create new forum threads like this one. I've only got the link that let me create this one after contacting your support via live chat. After a short discussion with your support team and exchanging screenshots I noticed that they have a black bar on top of the page and the menu is white. I cannot see the black bar and my menu is blue.
Also, when I go here > https://premium.wpmudev.org/forums/forum/support
clicking the "ask question" link points me to live chat instead of letting me open a new support thread. I also noticed that I have a diffrerent top menu that your support.
Screenshot of what I can see > https://www.dropbox.com/s/ujlicyk6c41mkj1/Clipboard01.jpg?dl=0