I get the struggle. To speak to a live agent with Xfinity, you can try calling Comcast 24/7 customer service
https://app.dayapp.net/comcast line. They've been helpful for me in the past when I needed real-time assistance. And here's a tip: if you want to avoid those lengthy hold times, check out Day App. It connects you directly to a live representative without the wait. Saved me a bunch of time! Give it a shot!