Unilateral cancelation and no communication

So I was supposed to receive a router from you guys. I know the process, which is that you are supposed to send the client the tracking information before delivery. I received no such information and then one day one of the courier pitched up on my doorstep but I was not home and could not accept delivery. I got a call later and explained it to the consultant who advised they would reschedule delivery the next day (Friday). I waited that day. Nothing. So I spent days trying to find the tracking number so that I can figure out what is happening and prevent another failed delivery when I am not home. Eventually I see that you guys unilaterally cancelled the delivery for no reason, just 2 hours after we had rescheduled it. I even have screenshots of the tracking screen to show how poor your service is. No communication what's or ever. This is why your rating is so low