Terrible customer service

I connected with xfinity human agent on chat to renew my xfinity home internet but I am extremely disappointed and frustrated with the experience I’ve had today. The first agent I spoke to insisted on adding a “free” mobile line to my account, even though I repeatedly refused. I eventually agreed just to move forward, but when we reached the final step, I noticed there was actually a $25 one-time fee for the line — something the agent never mentioned upfront.
When I told her I no longer wanted the line, she said she would credit me the $25 fee, but later claimed she couldn’t apply the credit. Then another agent joined the chat, and after explaining everything all over again, that agent also left the chat before resolving the issue.
I have been passed from one agent to another for the past 2–3 hours, repeating my situation each time. It has been exhausting and extremely frustrating. All I wanted was to renew my existing plan, but instead I’ve spent hours dealing with unnecessary issues caused by misinformation and poor communication.
The last agent I spoke with said they would issue an additional $30 credit for the inconvenience, but before confirming or processing it, they left the chat and someone new joined again. This constant transfer between agents without resolution has left me mentally drained.
I’ve tried to stay patient, but this experience has been incredibly disappointing. I expect this issue to be resolved as soon as possible, with the promised credits applied and confirmation that no unwanted mobile line remains on my account.
here is the chat id provided by the agent
[Edited: "Personal Information"]