Delayed installation

I have never used xfinity before but my installation experience does not bode well for the future. I work from home and require good high speed internet for nature of my work. Also I  have limited availability during the week. My previous internet provider had several disruptions that were causing significant issues while working and the only other alternative i have for fiber optic is xfinity in my area. I scheduled an installation appointment on Saturday morning which was my only availability for the week and expecting the service to be initiated discontinued my prior connection. However when the technician show up he infme that "outside work" is required thay he is not qualified to do amd he will let his center know about this.and I should be getting a call. Again I was expecting installation to be done that day, but I got no call till noon and when I call was told there is no availability till Monday afternoon. Talked to 3 different people including a supervisor to no resolution.

I dont think its unreasonable to expects installation on the day that one schedules. Also because I work Monday morning and I have no internet I now have to use time off from work to get this done. This has been very inconvenient and caused a lot of disruption.