After 3 hours troubleshooting a person promised to schedule a tech appt, they did not.

On Monday my internet was slow and laggy. I talked to the xfinity assistant, they tried to fix the issue by turning on 'bridge' mode on the main network. This brought down my internet completely. I spent 3 hours talking to the robot and then a live agent trying to undo that change. The live agent promised they undid bridge mode but my main wifi network is still not active. They said they would schedule an appointment for me. They did not, all they did was to send me a help article telling me how to schedule one. Guess what it says. Talk to the xfinity assistant. The Xfinity assistant wants to run me through more troubleshooting and refuses to help me schedule a tech appointment. I want to scream.