YODEL courier smashed my glass foor

I have mobility issues so on the 4th Feb 2016 was bed bound. I was alarmed by a long series of bangs. When I got down there was a card through the door and this was the result of the glass.
The glass was broken in a 1/2 hour period from my wife leaving the house and me getting woken by the banging. I phoned the driver who said he might of done it but not noticed, he came round next morning to deliver the parcel I missed and just started gobbing off and saying how could he do that.
There was no other person to our house all day, but yodel have investigated and I just recieved there response. It is that mistaken im quite sure I wasn’t there when the incident took place.