Inferior quality lounge suits

Their furniture looks good but its poor quality. I have not had assistance with my problem. I bought an l shape lounge suit from them and they delivered Dec 2020. The seats were as solid as i wanted it then. 11 Months later the seats are sagging and I can feel the wood behind my knees when I sit down. I called and complained and the lady was not of much help. I still have not been attended to regarding the inferior quality lounge suite.