BAD SERVICE MAHINDRA CENTURION

In August 2014 I bought a second hand Xylo at Centurion Mahindra never in my life I thought I will get the bad service I'm getting at this stage. Two weeks of driving the car the is a leak, took it to the workshop- no problem we will order the part a week after that sorry we ordered the wrong part.4 months after that there is a humming noise on the gearbox took it in and on the 12 of Feb 2015 via a mail from them they confirmed that they spares are there and the car is book for the 16th of March - here we are now there isn't parts day 4 now and the car is still there, there is no curtesy car no feedback on what's going on no mails on why is there a hickup with the spares AGAIN I do enjoy the car but the service the promises and the unprofessional way that I'm treated I strongly disagree with. Owner of Mahindra Centurion the staffs coustermer service sucks and the're are to many promises from the staff via mail and verbal that doesn't happen.I believe that I will most probably get beter service from a other Mahindra branch.I wonder if it's because it's a second hand car or are the new car owner experiencing the same service. I hope the owner and all the staff read this complaint