An abuser of people's privacy

I have not bought glazing from this outfit, but I am telephoned by them repeatedly - despite having asked them to desist. Their reps on the other end of the line are cheeky, persistent and stubborn. So expect a hard sell, and, if you go along with them, one of those three-hour sessions with a man who doesn't know the meaning of 'No'. I would never buy from this company.