Disgusting service, poor quality appliances

We bought an LG washing machine from Makro Silverlakes on 8 November 2023. The washing machine has been leaving stains on clothes since we bought it. We have complained numerous times in the past year to Makro, and LG technicians have come through to check the washing machine, clean the filters etc but the washing machine still leaves stains on clothes despite us doing regular cleaning of the drum and filters. We have contacted Makro Silverlakes again and told them that we want the washing machine replaced as it is still under guarantee and warranty. Ofentse Makgaba is taking us from pillar to post saying the washing machine cannot be replaced and that the guarantee is only 14 days? We were told that the manager Lisa Cotty will give us a call, she instead delegated and asked Albert the appliance manager to call us. Albert is also adamant that the washing machine can't be replaced "as there is no fault with the washing machine". How can a customer be so unhappy with an appliance and be taken from pillar to post? We want our money back because we have been very unhappy with the appliance and service received from Makro.