Bad customer service Lewis

My name is Suzan Moeng I bought a bed at Lewis Central city Mabopane around May/June 2020 3 months later the bed was damaged I went to the shop to report they took my complaint and nothing was done about my complain ,went there again after few months nothing was done to this day nothing has been done about my complain.As I write this I just came back from the shop nothing is done and now they telling me about the guarantee that was supposed to be a year and now it has passed because we are in 2022 already ,I would like to know what do I do with a damaged bed in my house , my kids are sleeping on the floor because of I don’t have anyone who takes my complain serious.It has been over 2 years now and Lewis people just don’t care about my complain every time I go there I find a different staff member and none of them wants to take accountability for this so I would like to understand,do I take the next step of going the legal route or will this problem be fixed.