I had an installation booked with TooMuchWifi and took a day off work to be available

I had an installation booked with TooMuchWifi and took a day off work to be available. I noticed a missed call from them early in the morning and returned the call immediately. The representative told me she couldn’t see anything on the system. Shortly after, I saw an unbranded vehicle outside my house—they didn’t introduce themselves or attempt to communicate, just drove off. When I called again later, I was told the missed installation was my fault for not answering the call. This is extremely frustrating. The communication between their customer service and technicians is poor, and there’s no accountability on their side. Now I have to wait for a reschedule and somehow it’s still my fault. A whole day wasted.