Zoho say my domain seems to be already associated with another account

Zoho say my domain seems to be already associated with another account

I created a website on zoho and associated my domain (bompescado.com) on it.
You can see the A record and CNAME are working to it.

Now I need to associate the same domain as webmail, but when I try it return with: " This domain name seems to be already associated with another account. If you own this domain, please contact us for assistance."

Im following the advice and conctacting you to say I've not been associated this domain on zoho before. 
What do I need? Well, I need you manually remove it from any Zoho account as far as Im the domain owner.

What do you need from me to do that? Im waiting for you. Please help me as far as you can. Thanks.