Marketing harassment from Audi West Rand

I get harassed on a constant basis with senseless marketing campaigns from Audii West Rand. Despite marking the incoming messages as spam, they relentlessly continue to harass me. When phoning Audi West-Rand, they seem indifferent about the fact that they are *******ly sending marketing messages and the manager does not even care to even apologise. If I ever wanted to own an Audi, I've now been totally cured from any Audi product or from West Rand Audi in particular.