Multiple drop outs after maintenance in the area

Sooo.. I've been making multiple complaints about dropouts after some maintenance. I work at home and its crucial to have a stable connection due to Citrix and VoiP. I work in IT so I've already restarted the router multiple times, checked all equipment and cables so there is nothing to do inside. I scheduled a technician visit on a Sunday 3-10-2024. I received a text stating "tech is arriving"... Moments later I received another text, "sorry we missed you, please reschedule." I immediately called and complained the tech didn't ring the door bell nor did he call and missed the appointment. I received another appointment later in the day for a different tech however my doorbell rang 20 minutes later. I met the tech and stated the issue is outside after scheduled maintenance and to check the lines. It was actually the same tech [Edit: personal identifiable information] that missed the appointment so I could tell he was aggravated. The tech said to me "I don't know you, you don't know what you are doing and I need to come inside." I repeated my issue and asked if he could check the lines outside... He said NO and walked back to the truck. When I asked for his tech number he said "They know who I am." I am appalled and wouldn't have him in my home if you paid me. I need this escalated as I am not only insulted but would never have anyone in my home with that attitude and also trying to avoid the work. My next move is sending an email to [Edit: personal identifiable information] about my experience.  I am also searching for another provider. I have had two dropouts while writing this message. [Edit: personal identifiable information]