BMW SA- ON CALL- Pathetic service & Customer humiliation

I had a breakdown, returning from a BMW service where the vehicle was inadequately attended to. My engine seized as a result of the defective workman ship. I had to call BMW on call assistance about 4 times before they got me a tow truck or technician. Despite this, after requesting a loan vehicle which is sourced from a rental agency, they agreed I would get one the next day by going to the airport and dealing with the agency's satellite office. I went the next day only to be told the booking was incorrect and BMW SA gave me the incorrect information. After 2 hours of acting as a liaison between the BMW call centre and the rental agency, they could still not get this booking completed. Infact another BMW customer was driven to the agency and given a vehicle for a breakdown she had a few hours prior to coming in. I was totally disrespected and dealt with inadequately. After returning home, the call centre team leader asked if I could return to the airport to pick a vehicle in 2 hour's time. This is a reflection on what BMW SA and its affiliated partners think of their patrons, irrespective to the fact that had adequate quality control been performed on my vehicle I would not have been stranded without a car for the entire long weekend, ***. It is no wonder why the established manufacturers and losing market share and eroding years of establishing their once revered brand.