Replacement of windscreen

I got the help that I needed and was told to take the car in on Friday the 26/04/2019. I tried to arrange with the provider to come fit the windscreen at my wife's work place but was told that the insurance was supposed to arrange for a mobile service. I then realized that I was not afforded the opportunity to choose what service will suit me properly. So I am trying to get someone take the car in for me tomorrow and that is very unpleasant.