Why Not Lease It Scam artists at work

I saw the why not lease it at Sears and we really needed a new matress so I thought this would be the best route. I understood I would make bi-weekly payments for about 5 months then we could buy it out or continue on the lease. So when I checked my balance and a month later it still hadn't gone down I called them. The guy told me that unless I bought it out I would be responsible for 18 more months of payments which was about another $2,200 for a bed that was just under $1,000!!!! Are you serious. I asked what happened to the 3 payments I made and he told me it did not go towards what I owed but towards that 18 months. That is ridulous, that to me is fraud to charge people double the value of something.