Paying for something which I'm ain't even utilizing

Im highly disappointed on the service I got from bradlows brought a couch then it got broken went to repairs end of March decided I no longer want the couch because it constantly have to go for repairs, decided to go for something else which the exchange was approved as they said to tried calling all kinds of customer service contacts which I get across to with no positive feedback continuously calling the head office with no luck of getting the right information. I'm always at the store to check on the progress when I get there the manager gives the same story of everything is approved I should expect my delivery anytime, which anytime was from March till this very date which is August still for the delivery keep it in mind I'm still paying for till this very day I'm ain't having the product which I'm actually paying for