Fix the support ticket policy for GHES (#54432)

Author: pnsk

content/support/contacting-github-support/viewing-and-updating-support-tickets.md

@@ -65,11 +65,11 @@ You can also comment on tickets opened by someone else and associated with your
 
 ## Requesting a callback
 
-If your account includes {% data variables.contact.premium_support %}, you can request a callback for urgent or high priority tickets. From the ticket, click **Request a callback from GitHub Support**.
+You can request a callback for urgent or high priority tickets{% ifversion ghec %} if your account includes {% data variables.contact.premium_support %}{% endif %}. From the ticket, click **Request a callback from GitHub Support**.
 
 ## Requesting an escalation
 
-If your account includes {% data variables.contact.premium_support %}, you can request to escalate a ticket if it was opened at a lower priority but the issue has become more urgent. From the ticket, click **Request an escalation**. For more information about requesting an escalation, see [AUTOTITLE](/support/learning-about-github-support/about-github-premium-support#assigning-a-priority-to-a-support-ticket).
+You can request to escalate a ticket if it was opened at a lower priority but the issue has become more urgent{% ifversion ghec %} if your account includes {% data variables.contact.premium_support %}{% endif %}. From the ticket, click **Request an escalation**. For more information about requesting an escalation, see [AUTOTITLE](/support/learning-about-github-support/about-github-premium-support#assigning-a-priority-to-a-support-ticket).
 
 {% endif %}