Delete a Zoho CRM instance

Delete a Zoho CRM instance

I created 2 Zoho CRM instances to evaluate Zoho CRM.
I would like to delete one of the instances which was created by ariel@brillix.co.il.
And continue the eveluation on the instance created by liron@brillix.xo.il

I dont know how to do this myself and i dont know how to contact support,
Can anyone help me with this?

Thanks,
Ariel