Cant even book my car in for service

I attempted to book my car for a service on the 17 December at 8AM. I was told that the current person was busy with a client and would call me back. An hour passed and no phone call. I phoned once again and was told that I would have to leave my name and number for them to contact me. 45 minutes later still nothing. I called the Dealer principal Azzar who assured me that he would make sure that someone would contact me within 15 minutes. Over an hour later once again nothing. I called again attempting to book my vehicle for a service. This has taken four hours to do and all people can tell me is sorry. Clearly they do not value the after sales service. They are quick to take new business when purchasing a new vehicle but then nothing. One gets told that you have to keep your service history up to date for the warranty. But if one is met with such shocking service how can one do this. Im disgusted with the service that I have received and regret purchasing a vehicle from them. Holding my breath for someone to contact me. Clearly not going to happen