Filing a Compliant

I'm looking to file a compliant. Reason being i recently move into my new home. I've made an appointment on march the 4th to have services put in my new home on march the 28th from the time frame 1-3pm. On the day of the appointment the technican never came and i had to call to find out why. The representives couldn't give me an answer and i had to redo my appointment for march 31st. Here we are today (03/31) i had an appointment from 3-5 a technican again did not show up and i had to call again to find out why I was told it was due to work load. This is after I received that a text stating technican was arriving to my home but they indeed did not show up. I had to RESCHEDULE a third time from Xfinity to come to my home TOMORROW (04/01) to put internet into my home. I find this unacceptable, disrespectul, and inconsiderate of my time.