Rude unsolicited marketing

In July last year I contacted Vodacom to ask them to stop marketing to me. I was advised there was no such option (ever heard of CPA?) and I was told to register with DMA to avoid these calls, which I did. This morning I get a call re data bundles from Lee and I just hung up. I called Customer Care at 11:40 and Boitumelo said she would \flag\" my number as someone who doesn't want to be contacted. At 14:00 I received another call from +*** with the data - story again. I said to Magdalene I do not want to receive calls and after an exchange she put down the phone in my ear while I was still talking. Even if I don't want to speak to your agents I am still a customer and refuse to be treated like that. There was another attempted call at 15:22 from the same number. Anyway, respond or don't respond, Vodacom. I will pick the matter up with DMA on Monday."