Multichoice continues to harass their customers

I am so sick and tired of their call center, On Air, constantly harassing me even though I have told them numerous times to stop calling me. They refuse to stop and when I tell them to stop they argue with me. They even call after 19.00 which is completely unacceptable. I am a Multichoice customer already and this is how Multichoice decides to treat their customers. Multichoice's strategy for good customer relations is to harass their customers to the point where they hate them. Well done Multichoice. You bunch of muppets.