Bad service at Home choice

I have had an problem with these people for more than a year now.First delivered a box of bedding which I never ordered.I eventually took it to our local post office to send it back. After some weeks they phone me accusing me of items that wasn't returned.I have proof of when the box was sent back and when they fetched the box from a post office in Cape town.For more than a year now I have struggled to get it sorted out.They never made an effort to come back to me or to return my calls.I have sent so many affidavits and tracking number of the goods that have been sent back.I have no also been blacklisted because of Home choice.I don't owe them anything and I cannot be liable for anything.I have spoken to many people but no help available...The phone was also been put down in my ear.Im truly stressed.