Zoho crm company account

Hi , we started using zoho newly so I decided to set up a test company crm account (Radius Partners Consulting) to test the capabilities of zoho crm . It's a great experience, we will start using zoho applications for our office but the issue is my collegues set up a new crm account under the name radiuscyprus and they cant invite me neither i can delete this test account. How shall we proceed??