...
In order to post an Upgrade Cluster ticket, kindly click on Upgrade Cluster selection on the PFX helpdesk Page and choose it from there:
...
Fill:
Subject
Account Name (please enter the account name of the customer for whom you are entering Cluster Upgrade or leave it blank if ticket is for your org.)
Further Details (with/without images)
Partition/Cluster
Update to New release
Suggested Start date/time
Suggested End date/time
...