Error in adding custom domain


we would like to add our domain to our netlify account, however the system says that the domain is already owned and fails with “custom_domain is owned by another account”.
Maybe this is because transfering the site from old Netlify account to new Netlify account, I found same situation in Netlify custom Domain: custom_domain is owned by another account.
Could you check our domain is associated with some account and fix the problem?

Thank you

Hey @developer1,
Thanks so much for your patience- the issue was exactly as you guessed: the zone was still attached to a team and site that had been deleted. We’ve freed up the zone for you so you should be able to use it now. Please let us know if that’s not the case!