I arrived early and was given an estimate of when ...

I arrived early and was given an estimate of when my vehicle would be ready. I waited 45 more minutes to receive my vehicle. The person who had my ticket said he would walk me to my car and go over the service done, but instead was distracted by another customer and I ended up with no explanations and walked myself to my car. I normally get a full rundown of what was done to my vehicle. This was not done. I was very displeased with the service assistant. Next time I would like to have the service assistant I request when I make my reservation.