No internet connection and customer service told me not to call back

We've lost internet connection for 3 days now, and when we had called customer service they said they could get someone out to fix it. We got a call from the technician and he said he was about 40 minutes away. About 20 minutes later customer service called us and told us a technician was on his way and then told us not to call them again. We waited for 8 hours and he never showed. We called customer service again because no one has showed up to help us. They were upset and said "we told you not to call this number again." At this point, if they dont show up today, we are most likely going to cancel xfinity and go with a different internet service like Tmobile wifi or Starlink. The way xfinity takes care of their customers is unprofessional and inexcusable. Honestly feels like a giant SCAM that somehow they get away with.