Calling in spite of DMA Opt Out

I received a call from ***.<br> <br> This number appears to belong to SellDirect - (according to their own website) a member of the Direct Marketing Association of SA.<br> <br> As I am registered on the DMA's Do Not Contact opt out list I would expect them to honour this list and to stop calling me. I would also like them to explain why they are ignoring this list.<br> <br> I will not except a call from a representative. Please respond to this complaint directly (and for all to see).