Very dissapointed, angry Lewis stores customer

I bought a L shape kitchen cupboard set from Lewis...not even a few months later the cupboard's material starts going off..and its bended until now...now they keep on calling for their money since i refused to pay them because in the time of carona i phoned them and told them about the problem..they had alot of excuses ..so who will pay for that teribble furniture. Anytime now it can fall apart...i told them again about the problem..eventhough my husband helps me pay Fortnightly but im really not gona pay anymore further..and the moment i get money in my account they take it straight away...i will neva eva buy there again...