BORDERLINE HARASSMENT!!

I am at my wits end as to how to stop these people phoning me. They phoned once to try sell me some of their products, and i politely declined, not being interested. Then they phoned again...<br> and again...<br> and again...<br> and did not stop.<br> The first 5 or 6 times I politely told them I was not (and wont be in the future) interested in their product. <br> But after that, politeness turn to irritation, which gradually sloped downwards with each unsolicited call to anger, and now an absolute hatred for this company. They cannot understand the concept of \No Thank You". <br> Sometimes I would just hang up during their presentation (which by now I can quote word for word)"