Mercedes benz - shocking client service

On the 05/08/2015 - I logged a complaint with Mercedes Benz head office complaints department ref no *** due to Century City branch being totally unaccommodating to book my brand new car in with rattles in both front doors (one of many factory faults still to be fixed) was advised can only accommodate on a mon to thurs for repairs (but not for next few weeks) as they are fully booked. I find this appalling as the faults originated from merc benz themselves. To date 12/08/2015 , 7 days later !!! no response from Merc Benz so called head office - very poor show on client service. Obviously , once a sale is made , they could not be bothered about you. This is my 4th vehicle from Mercedes-Benz but definitely the very last , can't accept this atrocious non-service , not acceptable !!