Complaint about the store

i bought a bed last year 2024 November and collected in December, April 2025 bed already showing dysfunctionalities and i did send a complaint early April and was approved for an exchange same april, 30 May 2025 i paid additional R4500 for a better bed, and assisted by the lady called Nomsa, to cut story short i have not received the bed even today, Nomsa send me to the werehouse and werehouse send me to Nomsa (sleepmasters), they came and delivered same bed while i paid a top up for another bed. i am struggling as the lady in the werehouse (Louisa) is aware and she also plays hide and seek.