The address sales@gitlab.com on the admin dashboard will be no longer valid
When I write an email to sales@gitlab.com I get the following reply:
Thank you for contacting us!
Please be advised this email address is being deprecated and will no longer be
monitored after April 1, 2018.
If you have a general question or are a customer needing to reach your Account
Manager, please use the Contact form.
If you need Support, please visit our Support information page or submit a
request using the support web form.
Therefore I assume the address in https://gitlab.com/gitlab-org/gitlab-ee/blob/master/ee/app/views/admin/licenses/_breakdown.html.haml should be changed/removed.