I have the same problem, and you should submit a ticket: https://bosslandgmbh.zendesk.com/requests/new
Been waiting 1 hour atm. Very slow support for "new" customers. Don't know how fast you will get help
Mine was instant, and I had the same problem last night when I tried a couple times. Turns out my credit card payments didn't go through because of the verified by visa thing. I just signed up with click and buy and that worked no problem.
I guess the 1st thing I would do is verify the payments actually went through.
Bought the trial with paypal, and same today for the session. And I have already checked, and it has gone through. Only thing I can think of, is that i wrote wrong email or something. But still waiting for my ticket. That fast service! -.-