Want access to admin console to free trial account

Hello all,

I would like to manage users and groups present in adobe. I have a free trial account but once I login into the portal I am not able to see the portal to manage users or groups. I tried to login into the admin console to manage users, however I was getting error message stating you have are not allowed to access it. Can some one please help me how to login into admin console and to whom should I reach out for accessing it?

I believe I should be given some rights but I am not sure how to proceed for it.

Thanks in Advance