You can have our pro support if you subscribe to any of these plan:
Better the plan, faster the support with higher priority.
If you are using Xen Orchestra via the sources, you can ask questions on our forum. However, there isn't any guarantee about answers nor when someone will be there to help you.
If Xen Orchestra is used in production, please subscribe to a plan.
You can open a ticket describing your issue directly from your personnal space here