In order to transfer your Next Century system, you will need to fill out this form.  

https://docs.nextcenturymeters.com/Property-Transfer-Request.pdf

Once this form is filled out, please send to support@vitality.io

Vitality will work with NextCentury to transfer the account to Vitality. Once this is complete, the support ticket will be closed and you will be able to connect NextCentury to Vitality.