SMG Cape Town pathetic service

I bought an approved BMW through SMG Cape Town , on receipt I noticed several problems with the car I took it to my local BMW dealer BMW Bedfordview who confirmed all the problems and continue to repair the problems (this took 4 weeks) as the car was still in motorplan , however one of the problems called for new tyres these were not covered by motor plan and we requested SMG Cape Town to approve the cost they bluntly refused and basically said it is your problem now . This after they promised several times that the car is 100% with zero problems BMW SA clearly states that all approved cars sold through the dealerships are thoroughly inspected and ALL problems are fixed BEFORE the car is allowed to be sold how is this then possible .