We had an account with Zoom that has been terminated. However, we still see that our email IDs are part of Zoom. Could you assist us or direct us to the appropriate team to ensure all accounts are removed? we're unable to do so using admin console

we acquired another company and I'm  interested in how we can add the new company to our instance.  I have an account (i.e name at company) in both systems but the new company system does not work.  I assume google IAM is running into problems with my same email.  How do we bring together the systems?  we need to keep the branding of the new company in the URL .