Unfortunately, the "submit case" button used to complete your submission in the support area is gray. Most computer users now immediately recognise a grayed-out button to mean that it is de-activated and never see it unless there are no other available options.
Further exascerbating the frustration is that this button has the same name ("Submit Case") as another button on the page, which is orange and takes you to a page where you can submit a request, which happens to be the page you're already on.
My suggestion is to:
Thank you for your consideration. I've included an image that illustrates the two buttons I'm speaking of.