Service at BMW Constantia -Claremont

I would like to express my disappointment from your unsatisfactory level of service. I have expected much more from a prestigious and reputed company of your standard. I took my car in 2 weeks ago to BMW Constantia Claremont as it had a water leak. After doing diagnosed it was established there was a oil leak as well although I took the car for a service 3 weeks prior to that and hardly drove the car but nothing was picked up. As my warranty is with Liquid Capital the paper work was forwarded to them. as I heard nothing further a day or 2 later I had to phone back and was informed that Liquid Capital need SMG tax number as there was a shift in ownership from Auric Auto To SMG. To date nothing has been forwarded to Liquid Capital. Can it really take almost 2 weeks for a piece of paper to be delivered from SMG head office? Every time I phone back the one party is blaming the other due to lack of interest. Companies are preaching about Treating customers fairly, however in this case its surely lacking, not even the service manager is responding. That is BMW Constantia for you once they sell you the car, then customer care flies out by the window