To request a change to the organization name and URL, open a support ticket and include the following details:
Current Organization Name: [Your current org name]
New Organization Name: [The name you want to change to]
New URL Slug: [The URL update you want implemented]
If you are not the account administrator, be sure to CC your admin when submitting the support ticket.
If you have the URL updated, all bookmarks will need to be updated as well.