Home Choice Sales calling every single day!

I bought a duvet set from Home Choice last year. I paid the account off within the 6 month period that I signed for. Too date I am being phoned on a daily basis including weekends in regards to specials that they have and that I qualify for almost everything that they have to sell. I have blocked every number to date, but still does not help. They find ways to contact me. Now I am being contact at my office as well. I have told them a million times to stop calling me as I am not interested in any thing from them any more. This is ridiculous!