regards to poor service and extremely poor call ce

I was sold a bed, and it wasn't what they made it out to be. They said the bed would be of good quality and would last a long period of time. It's been a period of 3 months and the bed is now in bad shape, the bed has a huge hole in the middle of it, the cotton on the sides of the bed are busted open and the springs have already surfaced over the stitching. I called and spoke to the sales agent for them to take their bed and they suggest to bring me a new bed of the same quality and texture, after I called them countless times to come and take their bed and they never to come take the bed back, I was given the run around and nobody was prepared to take action in my complaint. I am not happy with the level of service that I've been given. So now my name has been handed over to the debt collectors and they are demanding me to pay for the bed I clearly explained to them that I can't pay for something I don't want and I told them to come collect it, they sent their workers to come check the bed and I then called and they didnt take the bed back with them.