NMI Old ford road - Pathetic customer service

I took my car into NMI Old fort road on the 29th of April as my C200K was going into limp mode while driving it and there was fluid leaking underneath it. When I arrived I was told to leave my car as a full assessment needed to be done before a quote could be provided for repairs which is understandable. It is now exactly a week later and I have still not received the quote nor has the service rep Janice advised me when I'm going to get it. She always has excuses and the service that's been provided so far is ridiculous and unprofessional. Once I get the quote I still need to approve it before the work is done which is probably going to mean another week of puzzling to get transport too and from work as it is no longer cost effective to use a rental car. I would have been better off taking my car to a Bosch service centre as Mercedes have clearly lost the plot when it comes to their elite customer service. Please can someone from your head office contact me before I start posting this on multiple social media platforms as I am sure that I am not the only person who has a complaint of this nature. Its terrible to be treated this way as a paying customer :(