Pricing

Hello,
   we are interested into Zoho applications. We are a company.

   I have few questions:

   1) Is the FREE status a TRIAL status ? I read it expires from me on november 25th.
   2) As Business professional, have I access to the first free Wiki ?
   3) I have created 3 Workspaces. Zoho Tells me I have reached the limit ! How to get more workspaces ?
   4) Which is the difference between Business users and Wiki Users ?

   Thank you in advance

   Giuseppe Chillemi