Disgusted and disappointed

My car was brought into BMW Polokwane and they gave it to a stranger without informing me. They said they would contact me with more information and never did. Eventually I emailed them and received an email from the General Retail Manager, Christian Olivier. He too asked for more information and said he would get back to me and never did. The service he provided is such a disgrace to the BMW name, or is that the service we pay for as loyal BMW owners. Cause then we paying way too much for such awful service. He should work for a s**** yard instead. And what's even more pathetic, they do not take responsibility for the mistakes and expect me to sort out the mess.