Edblo Nguni bed defective

Purchased Edblo nguni 152cm bed on 29Nov20 from House and Home Pavillion. Due to poor quality of goods bed was broken within 4 months. Spoke to store and edblo, received a replacement mattress on 15th May 21. 8 days later the mattress has deteriorated, bed is practically broken, bed sinks in, can hear crunching grinding spring noises. Requested a full refund from store including the delivery fees. 2 beds in less than 6 months. How can Edblo sell products not fit for purpose and use to consumers? Lodged another complaint. Please could House & Home and Bravo Products respond