Network enhancement delays

Network enhancement in Nashua NH has taken my service down for 4 business days so far: 4/25, 4/28, 5/2 and today 5/3.   There was no advance warning that disruption will affect internet for not one, but SEVERAL days.  

• What is the service guarantee for Xfinity customers?   
• How much service availability is advertised?

When service is down for long periods 4 times over 6 consecutive business days, you are no longer providing reliable internet service.  

You cannot blame this on Network Enhancement unless you provide timely, accurate notice at least a week in advance. 

• How much notice do you think is appropriate for 4 days of PLANNED DOWNTIME?
• How will you compensate my expenses for making other work arrangements for four days (and counting) when service disappeared?