Unbelievably Poor Customer Service

I am writing this e-mail to you to express my discontent and anger towards the issue concerning my car. Registration: CB46LY GP.<br> <br> I called in to book the car in for a diagnosis to find out what could be the cause of the emission of smoke when the ignition is started every morning. I told the booking has been made for the 17th November 2015, which is today. However I received a voicemail requesting that I bring in the car on Monday so that it can sleep over at the garage and they can start it on the morning of the 17th to do a proper diagnosis. I then called in on the 16th whilst I was at work wanting to find out more about why should I bring in the car on Monday when it is booked for Tuesday and I outlined the issue that I will have with transport if I bring in my car on Monday the 16th instead of the 17th of November 2015. I was told I could not be loaned a car under any circumstances by the lady who received my call from services. <br> <br> So my husband brought in my car yesterday. Now today I call in asking when will I get the car, I am being told that the car will not be ready today and the lady whom we bought the car from has resigned. How is that my problem? I need a car.