How to make a one-year subscription?

Mortis Angelus

Airflow Optimizer
Original poster
Jun 22, 2017
283
277
I was trying to become a bronze supporter, but when I pressed the "subscribe"-button, I simply get the message:

"This feature is only available to Business and Premier Accounts"
https://www.dropbox.com/s/ftasrdggyw3a2ck/Screenshot 2017-10-27 11.40.25.png?dl=0

Why is that so? Does this mean that I have to first buy a monthly subscription before I can buy an annual one?

And yes, I have sent this same question to SFF Help (Contact us), but no response has been given, so thus I now ask about it here.