My technician no-showed to my appointment

I had a scheduled appointment for Saturday, April 11 from 8am - 9am. I was told multiple times via text that I will receive a call 15-30 minutes before arrival. However, no one has called and I am in desperate need of my internet being connected. This is absolutely unacceptable, as I have been living in my new apartment for over 2 weeks, and this was the first available appointment I could get. I require Wifi to connect to my TV, amazon alexa, and to complete my work! I have a dog who I leave at home during the day, and without Wifi I am unable to connect to my alexa to check on her and have the tv on for her to have background noise. When should I receive a phone call regarding my appointment or what can I do now?