Don't buy a car from them if you don't stay in Gauteng

Wow, i am amazed that dealerships carrying a brand like Mercedes can such bad service without any conciquenses. I bought two vehicles from them over a 4 month period, first time I though it might be sales man that just did not care. Second time round, I feel like this is their culture. If you buy a car from these guys, and you don't stay in Gauteng, licensing and registering your car becomes your problem. They still charge you for all the fees and refuse to just refund you the money that YOU paid for licensing and registration. They will refund the actual cost of the license, but not the full amount you paid. i do not get it. How is this allowed? Is this something I can raise with MIOSA?