( we should not do these steps from Support account)
You will need to log into the NSX Lastline Cloud at user.lastline.com to initiate this entire process
There should be an account creation option if you click on Admin -> Accounts -> Add account.
Create the new account you want to be the primary email.
Once you add the new primary email, you will want to give it the Administrator permission. You will then need to expand the Advanced Settings Option and you will be able set the new account as the Primary account.