Threatened by DSTV consultant, blocked 33 numbers so far.

We got a call from DSTV where they wanted to sell on air, we said no and from there they never stopped calling. They keep on calling and threatened my husband when he spoke to the consultant and requested to be left alone and that we are not interested. The consultant said he knows who we are, where we live and have all our information to do with what they want to. We have phoned DSTV to lodge a complaint and now we get phonecalls every 30 minutes on the dot, we have blocked 33 numbers already, but they keep on calling. This is harrasment and where is the POPI act now to protect us??. We will NEVER buy any products from DSTV!!!! How can you threaten people???