I previously used this domain with Netlify, deleted the site, and encountering the "A DNS zone for this domain already exists on NS1

[deepak1]

Dear Team,

I have configure my site and site name is csml-frontend.netlify.app.

Domain that i want add csmlgroup.com.

I used csmlgroup.com the domain with Netlify and deleted the domain, but the DNS zone might still exist in NS1’s system. Please request Netlify support to have the zone cleared.
So i can add csmlgroup.com domain again.