Done but I received the following email :
Important Note:
Email support for Nagios XI is only available to customers with an
active support/maintenance plan. Your email was automatically
rejected because our system shows that you are not subscribed to a
support/maintenance plan.
Nagios XI Customers:
If you are a Nagios XI customer with an active support/maintenance
plan, please contact our sales team at
[email protected] to gain access
to Nagios XI email support.
Purchasing Support:
You may obtain email support services for Nagios XI by purchasing or
renewing your support/maintenance subscription online at:
http://www.nagios.com/products/nagiosxi/pricing/buynow