Anoyed about weekly phone calls

I am being phoned on a weekly basis about ongoing specials. And this week I was phoned twice every time I ask the person to please stop calling as I do receive the catalogue every month and will order something if I see something that I like. I was told that they have the right to phone me as I owe them money because I have an account with them. These phone calls are really annoying and frustrating. I have asked them on every occasion to please make a note that I am not interested in any specials and to please stop calling me. It has fallen on deaf ears. I cant wait to finish payments on my account and I will never buy anything from homechoice again.