Fed up with non stop calls!!!!

I have an account with homechoice, and it's paid in full, I don't owe them anything. I even stopped buying from them because of the calls I'm getting everyday. I told them to remove my number from their database but it keeps on going on. I'm tired of this abuse from them. PLEASE STOP CALLING MY NUMBER I'M NOT INTERESTED IN YOUR PROMOS IF I WANT SOMETHING I WILL CHECK THE CATALOGUE ONLINE.