Endless Harassment from Homechoice

My wife ordered stuff from this company and when they were delivered it was not was she expected. We returned them at the sontonga branch on 12 May and have slips to prove it. My gripe with them is they keep calling me everyday And every time i tell them the goods were returned they hang up and another one calls again later in the day asking the same retarded questions. Now they sending my wife sms saying she must pay R859.87 which doesnt make sense because we dont have the goods. I want homechoice to resolve this matter as a matter of urgency. Good were returned and there should be no reason homechoice is harassing me with daily calls and texting my spouse to say she owes them.