Will not quit calling after I have asked them to quit calling, very rude people .

Had two of these calls now.
A cold call asking to speak to 'the lady of the house' and a learnt script, playing on the fact that parents might be concerned about too many films being unsuitable for children but then trying to sell two films.
When I tried to respond the woman making the call rudely talked over me without listening to anything I had to say even though I wasn't trying to be rude - only to say that I didn't want to buy the films but agreed that I was concerned about my children watching unsuitable things.
She spoke over me several times rigidly sticking to her script and I ended up with the impression that the cause was just a front for selling films and it wasn't a genuine campaign to protect children from unsuitable content, just a marketing gimmick.