For Starter customers, a custom domain (choose the URL for your portal) will cost an additional $50 per month. For Collaboration and Enterprise customers, a custom domain is included in your subscription.
To set up your custom domain, e.g. portal.budexclients.com, you need to create a CNAME record pointing to clinked.eu-west-1.elasticbeanstalk.com.
Once this has been done, you can email us at email@example.com so that we can complete the set-up.