The process was chaotic and we never had enough information to have a full appreciation and understanding of the whole process. We thought that a survey would be undertaken by the Company but instead we eventually did all of the preparatory work required ourselves following receipt of contradictory emails and spending much time attaching photos to a questionnaire only to be told to send them separately. We received several demands for payment despite having paid and then a demand for an extra payment for work that was not needed or undertaken. It was difficult to talk to anyone in person but fortunately the electrician who installed the unit was highly professional and proved to be the only person who knew what he was doing. All in all an extremely unpleasant and stressful experience where we seemed to do a large proportion of the work without getting value for money. We are aware of installations by other companies and these have been far superior to your service which we only used because of the recommendation by Renault. This is not a recommendation we could endorse.