Xfinity disconnected my service for enhancement

I work from home. Today is Monday. I received a text from Xfinity yesterday Sunday afternoon about an enhancement work in my area! Why  are customers being treated like this? Obviously this company does not care about what customers think. They don’t want to hear complains. They just do whatever they want.  If the service needs to be enhanced and disconnected, why not let people know in advance so that they can make arrangements. I had to use my PTO to cover the hours I’m losing. This is crazy!!!