Horrible service, you can just close down as we don't get the point of your existence

I took my car in at Mazda Woodmead for a Gearbox Mounting and they told me that they will have to first do a diagnosis of the car, which i understood. I Dropped of my car at 7:00 am on the 26th April 2018, at 10:00 am i called to find out on the diagnosis and if they have started working on my car and i was informed that they have not had a chance to work on my car. I then called at 2 to find out what the hold up was with my car and i was told that they are only doing the diagnosis at 14:00 pm, I then inform them that they have to collect me as i was knocking off at 15:00 and seeing that they have not done anything to the car i will collect it as is, i received a call at 14:30 to say that they needed to do the Gearbox mounting on the car, i then requested that they go ahead with and at that point i was told that they don't have parts and i will just get a diagnosis report of the car. I again requested to be collected and that didn't happen, i had to personally get a lift to the dealership and when i got there they were not even apologetic about the service that they have give me. I was informed that they will send me the diagnosis report that i still have not received to date. Furthermore to that, i found that the kilometers on my car and petrol had been different from the time i dropped off my car, it was then evident that because my car was not coming for a service they made use of it for their own reasons thus i couldn't get a report as nothing was done to my car. I must say the staff at the dealership are not friendly and not sure what the purpose of the dealership is outside wasting our time and money. They took advantage of the fact that i am a young woman, i was previously advised that the dealership is bad but i gave them a chance and they proved themselves right that they are useless and prey on their customers. I am very angry at this experience and more over the fact that they didn't respect my car and used it for only then know what