Terrible service

We purchased a sealy bed from Sleepmasters in Centurion Mall in Oct 2024,within two months of our purchase the mattress started to visibly sink on both sides and was terrible uncomfortable. On the 13 January we went into the store to lay a complaint. On the 30 January i was contacted by the warehouse for pictures and details regarding the mattress,on the 08th February I was contacted by the supplier to note they have approved my exchange and store will contact me,a week passed and I heard nothing to say we went into the store to let them know we would prefer a different brand or refund. We were advised the manager would contact us on the 10th,we did not get any call so I called in on the 12th to speak to the manager. The manager confirmed she needed to check with the supplier what was going on ,she called me back the sameday to say they there is no feedback,she was extremely unhelpful and could not answer my questions. Today is the 20th February and we still have no feedback and defective bed. I am extremely frustrated and unhappy with the lack of service. Please don't purchase anything from this store or a sealy bed for that matter.