I can't convert a Lead to an Account

I can't convert a Lead to an Account

Hello, I just got a trial for Zoho CRM and I am so close to being set up, and I'd love to upgrade and use this moving forward. But I cannot seem to work out how to convert a Lead to an Account. Everything looks correct from the back-end, my Leads all have company names, but when I click on convert it only gives me an option to make them a Contact. 

When I try 'mass convert' I have the option to covert to Contact and Account, but only the Contact is created!

I'm going crazy, please help!