Service arrangements and inconvenience

I booked my car in here for a heating sensor replacement. I arrived past 8, and now I'm very casually being informed that my vehicle will only be ready after 2 days because I brought it in late!<br> This is unacceptable and pathetic! Irrespective of how I now has to make my travel arrangements, and without offering a courtesy vehicle for the inconvenience, you just don't care. Well Mercedes Benz, this is the end of our relationship. I'm not up to such ****py service at all! <br> If my car has to spend two days in your workshop, inform your customers beforehand and make proper arrangements. I am not happy with this arrangement. Trying to call the service manager at *** is not helping since the telephone number is not even answered! Pathetic!!!