Escalating Support Issue to Appropriate Team

I have a recurring issue with my Xfinity streaming services that go back to April.   The issue occurs about once a month, and just occurred again yesterday. Each time, I spend a couple of hours with the front-line Xfinity support team to temporarily fix the issue.   

Also each time, I've asked to have the ticket escalated to someone from Comcast who can troubleshoot the actual root cause of the problem on your end and come up with a permanent fix.   Unfortunately, this hasn't gone anywhere.  They have sent out a technician who didn't find any issues.  They told me that they created an ECM ticket, but  apparently that was untrue since the ticket number I was given didn't have anything to do with the problem I was having.   Today, the front line support rep said that the system would not allow him to create any sort of escalation ticket.

It's very frustrating that I cannot reliably access content that I am paying for and that my issue is not being forward to the appropriate troubleshooting team.  I would appreciate any help you can provide.