Display furniture for full price - Consumer Complaint for Bradlows - Head Office

We bought a headboard and mirror on the 4th of december 2019 and they delivered a display set. When we alerted them, they apologized and said they didn't have new stock that's why they gave us the display set. now our problem is it's February now and they still haven't replaced our furniture. and why do you take our money if you can't deliver?! We're very unhappy