How do i delete my account on zoho?

How do i delete my account on zoho?

This is a nightmare, Im trying to delete my account completly?

I go to close the account and it says i must delete from "business first" and link me back to the main zoho screen. I got to control panel and try and delete the user and it says im not authorised!!!

Im the admin and it says i cant close the account?

Whats going on?